Z8F3201 datasheet(53/246 Pages) ZILOG

53 / 246 page

PS017610-0404

General-Purpose I/O

Z8F640x/Z8F480x/Z8F320x/Z8F240x/Z8F160x

Z8 Encore!®

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

Mnemonic

Alternate Function Description

Port A

PA0

T0IN

Timer 0 Input

PA1

T0OUT

Timer 0 Output

PA2

N/A

No alternate function

PA3

CTS0

UART 0 Clear to Send

PA4

RXD0 / IRRX0

UART 0 / IrDA 0 Receive Data

PA5

TXD0 / IRTX0

UART 0 / IrDA 0 Transmit Data

PA6

SCL

I2C Clock (automatically open-drain)

PA7

SDA

I2C Data (automatically open-drain)

Port B

PB0

ANA0

ADC Analog Input 0

PB1

ANA1

ADC Analog Input 1

PB2

ANA2

ADC Analog Input 2

PB3

ANA3

ADC Analog Input 3

PB4

ANA4

ADC Analog Input 4

PB5

ANA5

ADC Analog Input 5

PB6

ANA6

ADC Analog Input 6

PB7

ANA7

ADC Analog Input 7

Port C

PC0

T1IN

Timer 1 Input

PC1

T1OUT

Timer 1 Output

PC2

SPI Slave Select

PC3

SCK

SPI Serial Clock

PC4

MOSI

SPI Master Out Slave In

PC5

MISO

SPI Master In Slave Out

PC6

T2IN

Timer 2 In

PC7

T2OUT

Timer 2 Out (not available in 40-pin packages)

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