Z8F1680SH020SG Datasheet, PDF (82/412 Pages) Zilog, Inc. – High-Performance 8-Bit Microcontrollers

Z8 Encore! XP^® F1680 Series
Product Specification
57
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 D PD0 RESET
External Reset
N/A
PD1 C1INN
Comparator 1 Input (N)
PD2 C1INP
Comparator 1 Input (P)
PD3 CTS1/C1OUT
UART 1 Clear to Send or Comparator 1
Output
PD4 RXD1/IRRX1
UART 1/IrDA 1 Receive Data
PD5 TXD1/IRTX1
UART 1/IrDA 1 Transmit Data
PD6 DE1
UART 1 Driver Enable
PD7 C0OUT
Comparator 0 Output
Port E PE0 T4IN³
N/A
Reserved
PE1 SCL
I²C Serial Clock
Reserved
PE2 SDA
I²C Serial Data
Reserved
PE3 T4CHA³
Reserved
PE4 T4CHB³
Reserved
PE5 T4CHC³
Reserved
PE6 T4CHD³
Reserved
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