Z8F6421PM020SC Datasheet, PDF (73/299 Pages) Zilog, Inc. – High Performance 8-Bit Microcontrollers Z8 Encore-R 64K Series

Z8 Encore!^® 64K Series
Product Specification
53
I/O or alternate function operation. When a pin is configured for alternate function, control
of the port pin direction (input/output) is passed from the Port A–H Data Direction regis-
ters to the alternate function assigned to this pin. Table 12 lists the alternate functions
associated with each port pin.
Table 12. Port Alternate Function Mapping
Port
Pin
Port A PA0
PA1
PA2
PA3
PA4
PA5
PA6
PA7
Port B PB0
PB1
PB2
PB3
PB4
PB5
PB6
PB7
Port C PC0
PC1
PC2
PC3
PC4
PC5
PC6
PC7
Mnemonic
Alternate Function Description
T0IN
Timer 0 Input
T0OUT
Timer 0 Output
DE0
UART 0 Driver Enable
CTS0
UART 0 Clear to Send
RXD0 / IRRX0 UART 0 / IrDA 0 Receive Data
TXD0 / IRTX0
SCL
SDA
UART 0 / IrDA 0 Transmit Data
I²C Clock (automatically open-drain)
I²C Data (automatically open-drain)
ANA0
ADC Analog Input 0
ANA1
ADC Analog Input 1
ANA2
ADC Analog Input 2
ANA3
ADC Analog Input 3
ANA4
ADC Analog Input 4
ANA5
ADC Analog Input 5
ANA6
ADC Analog Input 6
ANA7
ADC Analog Input 7
T1IN
Timer 1 Input
T1OUT
Timer 1 Output
SS
SPI Slave Select
SCK
SPI Serial Clock
MOSI
SPI Master Out Slave In
MISO
SPI Master In Slave Out
T2IN
Timer 2 In
T2OUT
Timer 2 Out
PS019915-1005
General-Purpose I/O