Z8F1680SH020SG Datasheet, PDF (78/412 Pages) Zilog, Inc. – High-Performance 8-Bit Microcontrollers

Z8 Encore! XP^® F1680 Series
Product Specification
53
Table 18. Port Alternate Function Mapping, 28-Pin Parts^1,2 (Continued)
Port
Pin Mnemonic
Alternate Function Description
Alternate Function
Set Register AFS1
Port C PC0 Reserved
AFS1[0]: 0
ANA4/C0INP/LED ADC or Comparator 0 Input (P), or LED
drive
AFS1[0]: 1
PC1 MISO
SPI Master In/Slave Out
AFS1[1]: 0
ANA5/C0INN/LED ADC or Comparator 0 Input (N), or LED
Drive
AFS1[1]: 1
PC2 SS
SPI Slave Select
AFS1[2]: 0
ANA6/LED
ADC Analog Input or LED Drive
AFS1[2]: 1
PC3 C0OUT
Comparator 0 Output
AFS1[3]: 0
LED
LED drive
AFS1[3]: 1
PC4 MOSI
SPI Master Out/Slave In
AFS1[4]: 0
LED
LED Drive
AFS1[4]: 1
PC5 SCK
SPI Serial Clock
AFS1[5]: 0
LED
LED Drive
AFS1[5]: 1
PC6 T2IN/T2OUT
Timer 2 Input/Timer 2 Output Complement AFS1[6]: 0
LED
LED Drive
AFS1[6]: 1
PC7 T2OUT
Timer 2 Output
AFS1[7]: 0
LED
LED Drive
AFS1[7]: 1
Port D PD0 RESET
External Reset
N/A
Notes:
1. Because there are at most two choices of alternate functions for some pins in Ports A and B, the Alternate Func-
tion Set Register (AFS2) is implemented but not used to select the function. The alternate function selection
must also be enabled, as described in the Port A–E Alternate Function Subregisters section on page 61.
2. Because there is only one alternate function for each Port D and Port E pin, the Alternate Function Set registers
are not implemented for Ports D and E. Enabling the alternate function selections automatically enables the
associated alternate function, as described in the Port A–E Alternate Function Subregisters section on page 61.
PS025015-1212
PRELIMINARY
General-Purpose Input/Output