Z8F1680SH020SG Datasheet, PDF (81/412 Pages) Zilog, Inc. – High-Performance 8-Bit Microcontrollers

Z8 Encore! XP^® F1680 Series
Product Specification
56
Table 19. Port Alternate Function Mapping, 40-/44-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 Reserved
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 MISO
SPI Master In Slave Out
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/Timer2 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
Notes:
1. Because there are at most two choices of alternate functions for some pins in Ports A–C, the Alternate Function
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.
3. This timer function is only available in the 44-pin package; its alternate functions are reserved in the 40-pin pack-
age.
PS025015-1212
PRELIMINARY
General-Purpose Input/Output