M68HC16 Z SERIES
SYSTEM INTEGRATION MODULE
USER’S MANUAL
5-53
5.7.5 Pin State During Reset
It is important to keep the distinction between pin function and pin electrical state clear.
Although control register values and mode select inputs determine pin function, a pin
driver can be active, inactive or in high-impedance state while reset occurs. During
power-on reset, pin state is subject to the constraints discussed in
Table 5-20 Module Pin Functions
Module
1
NOTES:
1. Module port pins may be in an indeterminate state for up to 15 milliseconds at
power-up.
Pin Mnemonic
Function
ADC
PADA[7:0]/AN[7:0]
Discrete input
V
RH
Reference voltage
V
RL
Reference voltage
CPU
DSI/IPIPE1
DSI/IPIPE1
DSO/IPIPE0
DSO/IPIPE0
BKPT/DSCLK
BKPT/DSCLK
GPT
PGP7/IC4/OC5
Discrete input
PGP[6:3]/OC[4:1]
Discrete input
PGP[2:0]/IC[3:1]
Discrete input
PAI
Discrete input
PCLK
Discrete input
PWMA, PWMB
Discrete output
QSM
PQS7/TXD
Discrete input
PQS[6:4]/PCS[3:1]
Discrete input
PQS3/PCS0/SS
Discrete input
PQS2/SCK
Discrete input
PQS1/MOSI
Discrete input
PQS0/MISO
Discrete input
RXD
RXD
MCCI
PMC7/TXDA
Discrete input
PMC6/RXDA
Discrete input
PMC5/TXDB
Discrete input
PMC4/RXDB
Discrete input
PMC3/SS
Discrete input
PMC2/SCK
Discrete input
PMC1/MOSI
Discrete input
PMC0/MISO
Discrete input
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Freescale Semiconductor, Inc.
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