Z8 Encore! XP® 4K Series
Product Specification
38
Table 15. Port Alternate Function Mapping (Continued)(Non 8-Pin Parts)
Alternate
Function Set
Register AFS1
Port
Pin
Mnemonic
Alternate Function Description
PC0
Reserved
AFS1[0]: 0
AFS1[0]: 1
Port C
ANA4/CINP/LED ADC or Comparator Input, or LED drive
Drive
PC1
PC2
Reserved
AFS1[1]: 0
AFS1[1]: 1
ANA5/CINN/ LED ADC or Comparator Input, or LED drive
Drive
Reserved
AFS1[2]: 0
AFS1[2]: 1
ANA6/LED/
VREF*
ADC Analog Input, LED Drive, or ADC
Voltage Reference
PC3
PC4
PC5
PC6
PC7
COUT
LED
Comparator Output
LED drive
AFS1[3]: 0
AFS1[3]: 1
AFS1[4]: 0
AFS1[4]: 1
AFS1[5]: 0
AFS1[5]: 1
AFS1[6]: 0
AFS1[6]: 1
AFS1[7]: 0
AFS1[7]: 1
Reserved
LED
LED Drive
LED Drive
LED Drive
LED Drive
Reserved
LED
Reserved
LED
Reserved
LED
Note: Because there are at most two choices of alternate function for any pin of Port C, the Alternate
Function Set register AFS2 is not used to select the function. Also, alternate function selection as
described in Port A–D Alternate Function Sub-Registers on page 42 must also be enabled.
* VREF is available on PC2 in 20-pin products only.
PS022815-0206
General-Purpose I/O
ZILOG [ ZILOG, INC. ]
