User's Manual

1323x Remote Extender Motherboard
1323x Development Hardware Reference Manual, Rev. 1.0
5-8 Freescale Semiconductor
Figure 5-5. 1323x-REM IO Connector J8 and J9 Pin Mapping
Table 5-3 list the P1 and P2 pin header function as it relates to the MC13233.
Table 5-3. 1323x-REM P1 and P2 Pin Header Function Description
1323x-REM
Header Pins
MC13233
Signal Name
Description Comments
P1-27, P1-28 PTA0/XTAL_32K Port A Bit 2 / 32.768 kHz oscillator output • Drives LED1; jumper required
• 32.768 kHz oscillator can be enabled on
MRB
P1-26 PTA1/EXTAL_32K Port A Bit 3 / 32.768 kHz oscillator input • Unused
• 32.768 kHz oscillator can be enabled on
MRB
P1-14 RESET
Device asynchronous hardware reset.
Active low. Onboard Pullup
• Unused
• Reset signal driven from MRB
P1-30 PTA2 Port A Bit 2. Onboard pullup for TM • Unused
• TM enable; leave unconnected
P2-14 PTA3/IRQ Port A Bit 3 / IRQ. • Unused
• Provides interrupt request input IRQ
(active low)
P2-17, P2-18 PTA4/
XTAL_32KOUT
Port A Bit 4 / Buffered 32.768 kHz clock
output
• Drives LED2; jumper required
• Optional 32.768 kHz output clock for
measuring reference oscillator accuracy
(ppm)
P1-20 PTA5/SDA Port A Bit 5 / IIC Bus data • Unused
• Defaults to open drain for IIC
• Pullup on MRB
P1-24 PTA6/SCL Port A Bit 6 / IIC Bus clock • Unused
• Defaults to open drain for IIC
• Pullup on MRB
P2-1, P2-2 PTB0/KBI1P0 Port B Bit 0 / KBI1 Input Bit 0 REM switch matrix; jumper required
P2-3, P2-4 PTB1/KBI1P1 Port B Bit 1 / KBI1 Input Bit 1 REM switch matrix; jumper required
P2-5, P2-6 PTB2//KBI1P2 Port B Bit 2 / KBI1 Input Bit 2 REM switch matrix; jumper required
P2-7, P2-8 PTB3//KBI1P3 Port B Bit 3 / KBI1 Input Bit 3 REM switch matrix; jumper required
P2-10 PTB4//KBI1P4 Port B Bit 4 / KBI1 Input Bit 4 Unused