3.7.2 MCU Module Pin Function During Reset
Generally, pins associated with modules other than the SIM default to port functions,
and input/output ports are set to input state. This is accomplished by disabling pin
functions in the appropriate control registers, and by clearing the appropriate port data
direction registers. Refer to individual module sections in this manual for more infor-
mation. Table 3-7 is a summary of module pin function out of reset.
Table 3-7 Module Pin Functions
Module
Pin Mnemonic
DSI/IFETCH
DSO/IPIPE
Function
DSI/IFETCH
DSO/IPIPE
CPU32
BKPT/DSCLK
PGP7/IC4/OC5
PGP[6:3]/OC[4:1]
PGP[2:0]/IC[3:1]
PAI
BKPT/DSCLK
Discrete Input
Discrete Input
Discrete Input
Discrete Input
Discrete Input
Discrete Output
Discrete Input
Discrete Input
Discrete Input
Discrete Input
Discrete Input
Discrete Input
RXD
GPT
PCLK
PWMA, PWMB
PQS7/TXD
QSM
3
PQS[6:4]/PCS[3:1]
PQS3/PCS0/SS
PQS2/SCK
PQS1/MOSI
PQS0/MISO
RXD
MC68331
OVERVIEW
MOTOROLA
3-17
USER’S MANUAL
MOTOROLA [ MOTOROLA ]
