Z8F640x/Z8F480x/Z8F320x/Z8F240x/Z8F160x
Z8 Encore!
®
35
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 11 lists the alternate functions asso-
ciated with each port pin.
Table 11. Port Alternate Function Mapping
Port
Port A
Pin
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
T0IN
T0OUT
N/A
CTS0
Alternate Function Description
Timer 0 Input
Timer 0 Output
No alternate function
UART 0 Clear to Send
RXD0 / IRRX0 UART 0 / IrDA 0 Receive Data
TXD0 / IRTX0
SCL
SDA
ANA0
ANA1
ANA2
ANA3
ANA4
ANA5
ANA6
ANA7
T1IN
T1OUT
SS
SCK
MOSI
MISO
T2IN
T2OUT
UART 0 / IrDA 0 Transmit Data
I
2
C Clock (automatically open-drain)
I
2
C Data (automatically open-drain)
ADC Analog Input 0
ADC Analog Input 1
ADC Analog Input 2
ADC Analog Input 3
ADC Analog Input 4
ADC Analog Input 5
ADC Analog Input 6
ADC Analog Input 7
Timer 1 Input
Timer 1 Output
SPI Slave Select
SPI Serial Clock
SPI Master Out Slave In
SPI Master In Slave Out
Timer 2 In
Timer 2 Out (not available in 40-pin packages)
PS017610-0404
General-Purpose I/O
ZILOG [ ZILOG, INC. ]
