IIC Pull-up. NXP NXP DEMO9S08JS16, DEMO9S08JS16

8.8.1

J30 - Buzzer enable jumper BUZ_EN

8.9

8.9.1

Enables Buzzer to be controlled by PTF4. This is the default setting.

Figure 8-21: Buzzer Enable Jumper Settings BUZ_EN (J30)

IIC Pull-up

The DEMOJM provides external pull-up resistors for SCL and SDA lines, enabled by installing the corresponding jumpers on J31. By default both jumpers are installed.

J31 - IIC Pullup Enable Jumpers IIC_EN

Enables IIC external pullup. This is the default setting.

Figure 8-22: IIC External Pullup Enable IIC_EN (J31)

8.10

8.10.1

Analog Input Potentiometer

The DEMOJM provides an easy access 10KOhm potentiometer whose output may be connected to PTD1 and/or PTB2, selectable by J32, POT_EN.

J32 - Potentiometer Output Selection Jumpers POT_EN

8.11

Selects the potentiometer output connection. By default they are both connected.

Figure 8-23: Potentiometer Output Selection Jumpers POT_EN (J32)

Optional Jumpers For Various VDD And VSS

The DEMOJM provides 5 jumpers, J22 through J26, for different VDD and

VSS connections on the bottom of the board. By default, they are not

36 DEMO9S08JS16 User Manual