Z8F082ASH020SC datasheet(54/244 Pages) ZILOG

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PS024705-0405

P R E L I M I N A R Y

General-Purpose I/O

Z8 Encore! XP® F08xA Series

Product Specification

GPIO Interrupts

Many of the GPIO port pins can be used as interrupt sources. Some port pins can be con-

figured to generate an interrupt request on either the rising edge or falling edge of the pin

input signal. Other port pin interrupt sources generate an interrupt when any edge occurs

(both rising and falling). Refer to the chapter “Interrupt Controller” on page 46 for more

information about interrupts using the GPIO pins.

Port C

PC0

Reserved

AFS1[0]: 0

ANA4/CINP/LED

Drive

ADC or Comparator Input, or LED drive

AFS1[0]: 1

PC1

Reserved

AFS1[1]: 0

ANA5/CINN/ LED

Drive

ADC or Comparator Input, or LED drive

AFS1[1]: 1

PC2

Reserved

AFS1[2]: 0

ANA6/LED

ADC Analog Input or LED Drive

AFS1[2]: 1

PC3

COUT

Comparator Output

AFS1[3]: 0

LED

LED drive

AFS1[3]: 1

PC4

Reserved

AFS1[4]: 0

LED

LED Drive

AFS1[4]: 1

PC5

Reserved

AFS1[5]: 0

LED

LED Drive

AFS1[5]: 1

PC6

Reserved

AFS1[6]: 0

LED

LED Drive

AFS1[6]: 1

PC7

Reserved

AFS1[7]: 0

LED

LED Drive

AFS1[7]: 1

Note: Because there are at most two choices of alternate function for any pin of Port C, the Alternate

Function Set register AFS2 is implemented but not used to select the function. Also, alternate

function selection as described in “Port A–D Alternate Function Sub-Registers” on page 39 must

also be enabled.

Table 14. Port Alternate Function Mapping (Continued)(20/28-Pin Parts)

Port

Mnemonic

Alternate Function Description

Alternate

Function Set

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