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^1
HARDWARE REFERENCE MANUAL
^2
PMAC2 VME Ultralite
^3 VME Ultralite Control Board
^4 3xx-602643-xHxx
^5 June 1997
Single Source Machine Control Power // Flexibility // Ease of Use
21314 Lassen Street Chatsworth, CA 91311 // Tel. (818) 998-2095 Fax. (818) 998-7807 // www.deltatau.com
Copyright Information
© 2003 Delta Tau Data Systems, Inc. All rights reserved.
This document is furnished for the customers of Delta Tau Data Systems, Inc. Other uses are unauthorized without written permission of Delta Tau Data Systems, Inc. Information contained in this manual may be updated from time-to-time due to product improvements, etc., and may not conform in every respect to former issues.
To report errors or inconsistencies, call or email:
Delta Tau Data Systems, Inc. Technical Support
Phone: (818) 717-5656
Fax: (818) 998-7807
Email: [email protected]
Website: http://www.deltatau.com
Operating Conditions
All Delta Tau Data Systems, Inc. motion controller products, accessories, and amplifiers contain static sensitive components that can be damaged by incorrect handling. When installing or handling
Delta Tau Data Systems, Inc. products, avoid contact with highly insulated materials. Only qualified personnel should be allowed to handle this equipment.
In the case of industrial applications, we expect our products to be protected from hazardous or conductive materials and/or environments that could cause harm to the controller by damaging components or causing electrical shorts. When our products are used in an industrial environment, install them into an industrial electrical cabinet or industrial PC to protect them from excessive or corrosive moisture, abnormal ambient temperatures, and conductive materials. If Delta Tau Data
Systems, Inc. products are exposed to hazardous or conductive materials and/or environments, we cannot guarantee their operation.
EN Dispose in accordance with applicable regulations.
PMAC -VME Ultralite Hardware Reference Manual
Table of Contents
Table of Contents i
PMAC -VME Ultralite Hardware Reference Manual
INTRODUCTION
Overview
The PMAC2 VME Ultralite control board is a member of the PMAC2 family of controllers that replaces the local axis interface circuitry with the MACRO ring network interface. The Ultralite name is used because of the lack of any direct on-board axis interface circuitry. In other words, the interface hardware for channels 1 through 8 is missing on the Ultralite.
Features
Input/Output
The Ultralite board does retain the local general purpose I/O of the PMAC family, including:
JDISP display port
JTHW multiplexer port
JIO general I/O port
JHW handwheel port
JRS232 serial port
JRS422 serial port
The Ultralite board’s MACRO interface is available in one of three forms; one of the three must be ordered:
SC optical fiber interface
BNC coaxial cable interface
RJ-45 "phone jack" interface
The following ports are not available on the PMAC2 VME Ultralite:
JANA analog input port
JEQU position compare output port
JMACHn axis interface ports
Firmware
The firmware for the Ultralite functions identically to that of other members of the PMAC2 family, which is very similar to the firmware for the original PMAC family. Because of the hardware differences, there are some differences in the use of the firmware.
Variables I910 to I989, which control the setup of machine interface channels 1-8, are useless, because these machine interface channels are not present on the Ultralite. In an Ultralite system, equivalent functions are implemented on the remote drives.
Variables I900 to I909, which control the overall hardware setup on non-Ultralite boards, are useless on the Ultralite boards because they require some of the "missing" hardware. On a PMAC2 Ultralite, these functions are implemented by variables in the I990s. The comparison is given in the table 1-1.
The values of the motor I-variables that specify the addresses of the outputs and inputs for that motor, and the setup of the encoder conversion table that pre-processes the position feedback will be different on the PMAC2 Ultralite.
Function
MaxPhase/PWM Freq
Phase Clock Freq
Servo Clock Freq
Hardware Clock Freq
Deadtime/Pulse Width
Non-Ultralite Variable Ultralite Variable
I900, I906
I901
I902
I903
I904
I992
I997
I998
I993
I994
Introduction 1
PMAC2 VME Ultralite Hardware Reference Manual
DSPGATE2 I/O ASIC
Delta Tau has designed its own custom application-specific integrated circuits (ASICs) for the PMAC2
VME Ultralite using the latest sub-micron gate-array technology. Each ASIC contains 45,000 active logic gates. These ASICs contain all of the digital interface circuitry to tie the DSP to the machine; the rest of the circuitry on the board is buffer circuitry. The DSPGATE2 ASIC has three parts:
General-purpose digital I/O: 56 I/O points for JIO, JTHW, and JDISP ports
Servo interface circuitry for 2 supplemental channels with clock generation
MACRO ring interface circuitry
The general-purpose I/O and the servo interface circuitry on the DSPGATE2 generally share pins, except for two 2-channel encoder inputs and 2 PWM/PFM output sub-channels. On a PMAC2 VME Ultralite board, the shared pins are usually used for general-purpose I/O instead of extra servo interface circuitry, but this is up to the individual user.
2 Introduction
PMAC -VME Ultralite Hardware Reference Manual
CONNECTORS AND JUMPERS
Connector Summary
The following paragraphs provide a brief description of each connector on the PMAC2 VME Ultralite, its use, and individual pinout information.
Connectors and Jumpers
PMAC VME Layout Diagram
3
PMAC2 VME Ultralite Hardware Reference Manual
J2/JTHW (26-Pin Header)
Pin # Symbol Function Description Notes
1
2
3
4
5
6
7
8
9
10
11
12
GND
GND
DAT0
SEL0
DAT1
SEL1
DAT2
SEL2
DAT3
SEL3
DAT4
SEL4
Common
Common
Input
Output
Input
Output
Input
Output
Input
Output
Input
Output
PMAC Common
PMAC Common
Data-0 Input
Select-0 Output
Data-1 Input
Select-1 Output
Data-2 Input
Select-2 Output
Data-3 Input
Select-3 Output
Data-4 Input
Select-4 Output
Data input from MUX port accessories
Address/data output for MUX port accessories
Data input from MUX port accessories
Address/data output for MUX port accessories
Data input from MUX port accessories
Address/data output for MUX port accessories
Data Input From MUX Port
Accessories
Address/data output for MUX port accessories
Data input from MUX port accessories
Address/data output for MUX port accessories
Data input from MUX port accessories 13
14
15
16
17
18
DAT5
SEL5
DAT6
SEL6
DAT7
SEL7
Input
Output
Input
Output
Input
Output
Data-5 Input
Select-5 Output
Data-6 Input
Select-6 Output
Data-7 Input
Select-7 Output
Address/data output for MUX port accessories
Data input from MUX port accessories
Address/data output for MUX port accessories
Data input from MUX port accessories
Address/data output for MUX port accessories
23
24
25
26
19
20
21
22
N.C.
GND
BRLD/
GND
IPLD/
GND
+5V
INIT/
N.C.
Common
Output
Common
Output
Common
Output
Input
No Connection
PMAC Common
Buffer Request
PMAC Common
In Position
PMAC Common
+5Vdc Supply
PMAC Reset
Low is Buffer Req.
Low is in position
Power supply out
Low is reset
Note: The JTHW connector provides eight inputs and eight outputs at TTL levels; typically, these are used to create multiplexed I/O with accessory boards such as Acc-18 (Thumbwheel) and Acc-34 (Discrete I/O). The port I/O may also be used directly, as non-multiplexed I/O.
4 Connectors and Jumpers
PMAC -VME Ultralite Hardware Reference Manual
J3/JIO (40-Pin Header)
Pin # Symbol
1 I/O00
Function Description
In/Out Digital I/O0
Notes
Software direction control
29
30
31
32
1
26
27
28
22
23
24
25
18
19
20
21
14
15
16
17
10
11
12
13
6
7
8
9
2
3
4
5
I/O01
I/O02
I/O03
I/O04
I/O05
I/O06
I/O07
I/O08
I/O09
I/O10
I/O11
I/O12
I/O24
I/O14
I/O15
I/O16
I/O17
I/O18
I/O29
I/O20
I/O21
I/O22
I/O23
I/O24
I/O00
I/O25
I/O26
I/O27
I/O28
I/O29
I/O30
I/O31
In/Out
In/Out
In/Out
In/Out
In/Out
In/Out
In/Out
In/Out
In/Out
In/Out
In/Out
In/Out
In/Out
In/Out
In/Out
In/Out
In/Out
In/Out
In/Out
In/Out
In/Out
In/Out
In/Out
In/Out
In/Out
In/Out
In/Out
In/Out
In/Out
In/Out
In/Out
In/out
Digital I/O 1
Digital I/O 2
Digital I/O 3
Digital I/O 4
Digital I/O 5
Digital I/O 6
Digital I/O 7
Digital I/O 8
Digital I/O 9
Digital I/O 10
Digital I/O 11
Digital I/O 12
Digital I/O 13
Digital I/O 14
Digital I/O 15
Digital I/O 16
Digital I/O 17
Digital I/O 18
Digital I/O 19
Digital I/O 20
Digital I/O 21
Digital I/O 22
Digital I/O 23
Digital I/O 24
Digital I/O 0
Digital I/O 25
Digital I/O 26
Digital I/O 27
Digital I/O 28
Digital I/O 29
Digital I/O 30
Digital I/O 31
Software direction control
Software direction control
Software direction control
Software direction control
Software direction control
Software direction control
Software direction control
Software direction control
Software direction control
Software direction control
Software direction control
Software direction control
Software direction control
Software direction control
Software direction control
Software direction control
Software direction control
Software direction control
Software direction control
Software direction control
Software direction control
Software direction control
Software direction control
Software direction control
Software direction control
Software direction control
Software direction control
Software direction control
Software direction control
Software direction control
Software direction control
Software direction control
37
38
39
40
33
34
35
36
GND
GND
Phase/
Servo/
GND
GND
+5V
+5V
Common
Common
Output
Output
Common
Common
Output
Output
Reference Voltage
Reference Voltage
Phase Clock
Servo Clock
Reference Voltage
Reference Voltage
Supply voltage
Supply voltage
For latching data
For latching data
To power external circuitry
To power external circuitry
Note: The JI/O connector provides 32 input/output pins at TTL levels. Direction can be controlled in byte-wide groups.
Connectors and Jumpers 5
PMAC2 VME Ultralite Hardware Reference Manual
J5/JRS232 (10-Pin Header)
Front View
Notes
Tied to "DSR"
Host transmit data
Host ready bit
Host receive data
PMAC ready bit
Tied to "DTR"
See Note 2
Pin # Symbol
1 PHASE
2
3
4
5
6
7
8
9
10
DTR
TXD/
CTS
RXD/
RTS
DSR
SERVO
GND
+5V
Function Description
In/Out
Bidirect
Input
Input
Output
Output
Bidirect
In/Out
Common
Output
Phasing Clock
Data Term Ready
Receive Data
Clear to Send
Send Data
Req. to Send
Data Set Ready
Servo Clock
PMAC Common
+5Vdc Supply Power supply out
The JRS232 connector provides the PMAC2 VME Ultralite with the ability to communicate serially with an RS232 port. Jumpers E17 and E18 must connect pins 1 and 2 to use this port for serial communications.
This connector cannot be used for daisy chain communication interconnection of multiple PMACs, although it can be used to share servo and phase clocks for synchronicity. The J5A RS-422 interface is required for daisy chain communication.
Note: If communicating over this connector with a modem-style terminal emulator such as Microsoft Windows
Terminal, line 1 should not be connected. Servo and Phase are outputs if jumper E1 is OFF; they are inputs if jumper
E1 is ON.
6 Connectors and Jumpers
PMAC -VME Ultralite Hardware Reference Manual
J5A/JRS422 (26-Pin Header)
Pin # Symbol Function Description
Front View
Notes
13
14
15
16
9
10
11
12
5
6
7
8
1
2
3
4
CHASSI
S+5V
RD-
RD+
SD-
SD+
CS+
CS-
RS+
RS-
DTR
INIT/
GND
DSR
SDIO-
SDIO+
Common
Output
Input
Input
Output
Output
Input
Input
Output
Output
Bidirect
Input
Common
Bidirect
Bidirect
Bidirect
PMAC Common
+5Vdc Supply
Receive Data
Receive Data
Send Data
Send Data
Clear to Send
Clear to Send
Req. to Send
Req. to Send
Data Term Read
PMAC Reset
PMAC Common
Data Set Ready
Special Data
Special Data
Deactivated by "E8"
Diff. I/O low true **
Diff. I/O high true*
Diff. I/O low true **
Diff. I/O high true *
Diff. I/O high true **
Diff. I/O low true *
Diff. I/O high true **
Diff. I/O low true *
Tied to "DSR"
Low is "reset"
**
Tied to "DTR"
Diff I/O low true
Diff. I/O high true
21
22
23
24
17
18
19
20
SCIO-
SCIO+
SCK-
SCK+
SERVO-
SERVO+
PHASE
PHASE+
Bidirect
Bidirect
Bidirect
Bidirect
Bidirect
Bidirect
Bidirect
Bidirect
Special Ctrl.
Special Ctrl.
Special Clock
Special Clock
Servo Clock
Servo Clock
Phase Clock
Phase Clock
Diff. I/O low true
Diff. I/O high true
Diff. I/O low true
Diff. I/O high true
Diff. I/O low true***
Diff. I/O high true ***
Diff. I/O low true***
Diff. I/O high true ***
25
26
GND
+5V
Common
Output
PMAC Common
+5Vdc Supply Power supply out
The JRS422 connector provides the PMAC with the ability to communicate in both RS422 and RS232. In addition, this connector is used to daisy chain interconnect multiple PMACs for synchronized operation.
Note: Jumpers E17 and E18 must connect pins 2 and 3 to use this port for serial communications.
Connectors and Jumpers 7
PMAC2 VME Ultralite Hardware Reference Manual
J6/JDISP (14-Pin Header)
Pin # Symbol
1 Vdd
6
7
8
9
2
3
4
5
10
11
12
13
14
Vss
Rs
Vee
E
R/W
DB1
DB0
DB3
DB2
DB5
DB4
DB7
DB6
Function Description
Output +5V Power
Common
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
PMAC Common
Read Strobe
Contrast Adjust. Vee
Display Enable
Read or Write
Display Data1
Display Data0
Display Data3
Display Data2
Display Data5
Display Data4
Display Data7
Display Data6
Front View
Notes
Power supply out
TTL signal out
0 to +5 Vdc *
High is enable
TTL signal out
The JDISP connector is used to drive the 2 line x 24 character (Acc-12), 2 x 40 (Acc-12A) LCD, or the 2 x 40 vacuum fluorescent (Acc 12C) display unit. The DISPLAY command may be used to send messages and values to the display.
J7/JHW (20-Pin Header)
Pin # Symbol
1 GND
Function Description
Common Reference Voltage
Front View
Notes
13
14
15
16
10
1
11
12
6
7
8
9
2
3
4
5
+5V
HWA1+
HWA1-
HWB1+
HWB1-
HWA2+
HWA2-
HWB2+
HWB2-
GND
DIR1+
DIR1-
PUL1+
PUL1-
DIR2+
DIR2-
Output
Input
Input
Input
Input
Input
Input
Input
Input
Common
Output
Output
Output
Output
Output
Output
Supply Voltage
HW Positive A Channel
HW Negative A Channel
HW Positive B Channel
HW Negative B Channel.
HW Positive A Channel
HW Negative A Channel
HW Positive B Channel
HW Negative B Channel
Reference Voltage
PFM Positive Dir. Out
PFM Negative Dir. Out
PFM Positive Pulse
PFM Negative Pulse
PFM Positive Dir. Out
PFM Negative Dir. Out
To power external Circuitry
Also pulse input
Also pulse input
Also direction input
Also direction input
Also pulse input
Also pulse input
Also direction input
Also direction input
Also PWM output
Also PWM output
Also PWM output
Also PWM output
Also PWM output
Also PWM output
17
18
19
20
PUL2+
PUL2-
GND
+5V
Output
Output
Common
Output
PFM Positive Pulse
PFM Negative Pulse
Reference Voltage
Supply Voltage
Also PWM output
Also PWM output
To power external Circuitry
This connector provides the interface for two quadrature encoders, typically to be used as handwheel or time base master encoders.
8 Connectors and Jumpers
PMAC -VME Ultralite Hardware Reference Manual
P1 JVME (96-Pin Header)
Front View
Pin # Row A Row B Row C
13
14
15
16
09
10
11
12
05
06
07
08
01
02
03
04
D00
D01
D02
D03
D04
D05
D06
D07
GND
SYSCLK
GND
DS1/
DS0/
WRITE/
GND
DTACK/
BBSY/
BCLR/
ACFAIL/
B0IN/
BG0OUT/
BG1IN/
BG1OUT/
BG2IN/
BG2OUT/
BG3IN/
BG3OUT/
BR0/
BR1/
BR2/
BR3/
AM0
D08
D09
D10
D11
D12
D13
D14
D15
GND
SYSFAIL/
BERR/
SYSRESET/
LWORD/
AM5
A23
A22
20
21
22
23
01
17
18
19
D00
GND
AS/
GND
IACK/
ACKIN/
IACKOUT/
AM4
BBSY/
AM1
AM2
AM3
GND
ISERCLK
SERDAT/
GND
D08
A21
A20
A19
A18
A17
A16
A15
28
29
30
31
24
25
26
27
A07
A06
A05
A0
A03
A02
A01
-12
IRQ7/
IRQ6/
IRQ5/
IRQ4/
IRQ3/
IRQ2/
IRQ1/
+5V STDBY
A14
A13
A12
A11
A10
A09
A08
+12V
32 +5V +5V +5V
This is the standard VME connector. It is sufficient for 16-bit or 24-bit addressing and for 8-bit or
16-bit data. For 32-bit addressing, the B-row of P2 must be used as well. PMAC does not support
32-bit data transfers over the bus, even with the B-row of P2.
NOTE: If P1 is connected to the VME backplane, PMAC is connected to the +5V supply and GND automatically. In this case, no other +5V supply should be connected.
Connectors and Jumpers 9
PMAC2 VME Ultralite Hardware Reference Manual
P2 JVME (96-Pin Header)
Front View
Pin #
01
02
03
04
05
06
07
08
09
10
11
01
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
Row A
+5V
GND
DB6
DB4
DB2
DB0
R/W-
Vee
CTRL2
CTRL0
No Connect
+5V
No Connect
No Connect
No Connect
INIT-
PHASE-
SERVO-
RS+
CS+
SD-
RD-
No Connect
PUL_2+
DIR_2+
PUL_1+
DIR_1+
HW2_B2+
HW2_A2+
HW1_B1+
HW1_A1+
GND
+5V
Row B
+5V
GND
(Reserved)
VA24
VA25
VA26
VA27
VA28
VA29
VA30
VA31
+5V
GND
+5V
VD16* (Not used)
VD17* (Not used)
VD18* (Not used)
VD19* (Not used)
VD20* (Not used)
VD21* (Not used)
VD22* (Not used)
VD23* (Not used)
GND
VD24* (Not used)
VD25* (Not used)
VD26* (Not used)
VD27* (Not used)
VD28* (Not used)
VD29* (Not used)
VD30* (Not used)
VD31* (Not used)
GND
+5V
Row C
+5V
GND
DB7
DB5
DB3
DB1
E
RS
CTRL3
CTRL1
No Connect
+5V
No Connect
No Connect
No Connect
BRST-
PHASE+
SERVO+
RS-
CS-
SD+
RD+
No Connect
PUL_2-
DIR_2-
PUL_1-
DIR_1-
HW2_B2-
HW2_A2-
HW1_B1-
HW1_A1-
GND
+5V
The P2 connector is only used to support 32-bit addressing on the VME bus. The PMAC2 VME
Ultralite does not support 32-bit data transfers on the VME bus.
Note: Versions of the board before the -102 revision had only no connect on the A and C rows.
10 Connectors and Jumpers
PMAC -VME Ultralite Hardware Reference Manual
TB1 (2-Pin Terminal Block)
Pin # Symbol Function
1 GND Common
Description
Reference Voltage
Notes
2 +5V Input Positive Supply Voltage Supplies all PMAC digital circuits
This terminal block can be used to provide the input for the power supply for the circuits on the PMAC2 board when it is not in a bus configuration. When the PMAC2 is in a bus configuration, these supplies come through the bus connector from the bus power supply automatically; in this case, this terminal block should not be used.
TB2 (3-Pin Terminal Block)
Pin # Symbol Function
1 WD_NC Output
Description
Watchdog relay out
Notes
Normally closed
2
3
COM
WD_ No
Input
Output
Watchdog return
Watchdog relay out
+V or 0V
Normally open
Note: The normally closed relay contact is open while PMAC2 is operating properly (it has power and the watchdog timer is not tripped) and closed when the PMAC2 is not operating properly (either it has lost power or the watchdog timer has tripped).
This terminal block provides the output for PMAC2’s watchdog timer relay, both normally open and normally closed contacts. The normally open relay contact is closed while PMAC2 is operating properly and open when PMAC2 is not operating properly.
MACRO Interface Connectors
Version 1: Fiber Optic Transceiver
Lower port transmit optical data
Upper port receive optical data
Version 2: Coaxial Cable Connectors
J12 receive main data
J13 receive complementary data
J15 transmit complementary data
J16 transmit main data
Version 3: RJ-45 Phone Jack Connectors
J14 receive data
J17 - transmit data
Connectors and Jumpers 11
PMAC2 VME Ultralite Hardware Reference Manual
Jumper Summary
Refer to the PMAC2 VME Ultralite layout diagram (see diagram) for jumper locations.
E1: Card 0 Select
E Point and
Physical Layout
E1
Location Description
Remove jumper to specify that this PMAC is Card 0, which generates its own phase and servo clock (default). Jump pins 1 to 2 to specify that this PMAC is not Card 0, but
Card 1 to F (15), which requires external phase and servo clock signals from the serial port to operate.
E2: 40MHz/60MHz CPU Operation
E Point and
Physical Layout
E2
Location Description
Remove jumper to specify 40 MHz operation of the
PMAC CPU (2 x crystal frequency). Jump pins 1 to 2 to specify 60 MHz operation of the PMAC CPU (3 x crystal frequency).
E3: Re-Initialization On Reset Control
E Point and
Physical Layout
E3
Location Description
Remove jumper for normal reset mode (default). Jump pins 1 to 2 for re-initialization on reset.
Default
No jumper installed
Default
No jumper installed
(standard)
1-2 jumper installed
(Option 5B)
Default
No jumper installed
E4-E6: (Reserved For Future Use)
E Point and
Physical Layout
E4-E6
Location Description Default
No jumper installed
E7: Multi-Board Daisy-Chain Configure
E Point and
Physical Layout
E7
Location Description
Jump pin 1 to 2 to receive clock signals over RS-232 port
(single-ended) as board @1 to @F.
Jump pin 2 to 3 to receive clock signals over RS-422 port
(differential) as board @1 to @F.
Default
1-2 Jumper installed
This jumper is only present on prototype PMAC2 VME Ultralite boards (-100).
12 Connectors and Jumpers
PMAC -VME Ultralite Hardware Reference Manual
E8: RS232 Converter Power Supply Control
E Point and
Physical Layout
E8
Location Description
Jump pin 1 to 2 to apply +5V to J5A pin 2 (JRS422). This can be used to power optional RS422 to RS232 converter module which requires +5V for operation.
Remove jumper to leave pin open.
Note: This jumper is present only on prototype PMAC2 VME Ultralite boards (-100).
E9 - E16: Serial Interface Handshake Control
Default
Jumper installed
E Point and
Physical Layout
E9 E10
Location Description Default
Jump E9-1 to E9-2 to allow TXD/ to be input on J5A-11; jump E10-1 to E10-2 to allow RXD/ to be output on J5A-
13.
Jump E9-1 to E10-1 to allow TXD/ to be output on J5A-11; jump E9-2 to E10-2 to allow RXD/ to be input on J5A-13.
1-2 Jumpers installed
E11 E12 Jump, E11-1 to E11-2 to allow TXD to be input on J5A-12; jump E11-1 to E11-2 to allow RXD to be output on J5A-14.
Jump E11-1 to E12-1 to allow TXD to be output on J5A-12; jump E9-2 to E10-2 to allow RXD to be input on J5A-14.
1-2 Jumpers installed
E13 E14 Jump E13-1 to E13-2 to 1-2 allow RTS to be input on J5A-
15; jump E14-1 to installed E14-2 to allow CTS to be output on J5A-17.
Jump E13-1 to E14-1 to allow RTS to be output on J5A-15; jump E13-2 to E14-2 to allow CTS to be input on J5A-17
1-2 Jumpers installed
E15 E16 Jump E15-1 to E15-2 to 1-2 allow RTS/ to be input on J5A-
16; jump E16-1 to E16-2 to allow CTS/ to be output on
J5A-18.
1-2 Jumpers installed
Jump E15-1 to E16-1 to allow RTS/ to be output on J5A-
16; jump E15-2 to E16-2 to allow CTS/ to be input on J5A-
18
Note: E9 -E16 jumpers control whether the RS-422 port is DCE or DTE. They are present only on the prototype
PMAC2 VME Ultralite. The default configuration sets up a DTE device for direction connection to the DCE COM port of an IBM PC or compatible.
Connectors and Jumpers 13
PMAC2 VME Ultralite Hardware Reference Manual
E15A-H, E16A-H: DPRAM Byte Order Control
E Point and
Physical Layout
E15A-H
Location Description
Jump pins 1 to 2 to tie DPRAM data lines 8-15 to VMEbus data lines 8-15 (Motorola big endian format).
E16A-H
Jump pins 2 to 3 to tie DPRAM data lines 8-15 to VMEbus data lines 0-7 (Intel little endian format)
Jump pins 1 to 2 to tie DPRAM data lines 0-7 to VMEbus data lines 0-7 (Motorola big endian format).
Default
1-2 Jumpers installed
1-2 Jumpers installed
(Motorola format)
Jump pins 2 to 3 to tie DPRAM data lines 0-7 to VMEbus data lines 8-15 (Intel little endian format)
Note: This jumper function is implemented differently on the prototype PMAC2 VME Ultralite boards (-100) than it is on subsequent versions (-101 and greater). All E15A-H and E16A-H jumpers must be in the same setting for
DPRAM communications to work.
E17 - E18: Serial Connector Select
E Point and
Physical Layout
E17
Location Description
Jump pins 1 to 2 to use RS-232 serial interface.
Jump pins 2 to 3 to use RS-422 serial interface.
Default
1-2 Jumper installed
E18 Jump pins 1 to 2 to use RS-232 serial interface.
Jump pins 2 to 3 to use RS-422 serial interface
1-2 Jumper installed
Note: E17 and E18 control whether the RS-232 or RS-422 serial port is used.
E19: Watchdog Control Jumper
E Point and
Physical Layout
E19
Location Description
Jump pin 1 to 2 to disable Watchdog timer.
Remove jumper to enable Watchdog timer.
Default
No jumper installed
E20-E21: DPRAM Byte Read/Write Order Control
E Point and
Physical Layout
E20 E21
Location Description Default
Jump E20-1 to E20-2 to tie VME bus signal VDS0- to upper byte select of DPRAM; jump E21-1 to E21-2 to tie
VDS1- to lower byte select (Motorola format).
-2 Jumpers installed
Jump E20-1 to E21-1 to tie VME bus signal VDS0- to lower byte select of DPRAM; jump E20-2 to E21-2 to tie
VDS1- to upper byte select (Intel Format).
Note: This jumper function is implemented differently on the prototype PMAC2 VME Ultralite boards (-100) than it is on subsequent versions (-101 and greater).
14 Connectors and Jumpers
PMAC2 VMEUltralite Hardware Reference Manual
SCHEMATICS
Connectors and Jumpers 15
16
PMAC2 VMEUltralite Hardware Reference Manual
Connectors and Jumpers
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