ez80f92 ZiLOG Semiconductor, ez80f92 Datasheet - Page 22

• Manufacturer Part Number: ez80f92
• Description: Ez80acclaim Flash Microcontrollers
• Manufacturer: ZiLOG Semiconductor

Table 1. 100-Pin LQFP Pin Identification of the eZ80F92 Device (Continued)
PS015313-0508
Pin No Symbol
75
76
77
PD7
RI0
PC0
PC1
RxD1
TxD1
Function
GPIO Port D
Ring Indicator Input, Active Low
GPIO Port C
Transmit Data Output
GPIO Port C
Receive Data
Signal Direction
Bidirectional
Bidirectional
Bidirectional
Input
Description
This pin can be used for general-purpose
I/O. It can be individually programmed as
input or output and can also be used
individually as an interrupt input. Each
can be selected to be an open-drain or
open-source output. Port D is multiplexed
with one UART.
Modem status signal to the UART. This
signal is multiplexed with PD7.
This pin can be used for general-purpose
I/O. It can be individually programmed as
input or output and can also be used
individually as an interrupt input. Each
Port C pin, when programmed as output,
can be selected to be an open-drain or
open-source output. Port C is multiplexed
with one UART.
This pin is used by the UART to transmit
asynchronous serial data. This signal is
multiplexed with PC0.
This pin can be used for general-purpose
I/O. It can be individually programmed as
input or output and can also be used
individually as an interrupt input. Each
Port C pin, when programmed as output,
can be selected to be an open-drain or
open-source output. Port C is multiplexed
with one UART.
This pin is used by the UART to receive
asynchronous serial data. This signal is
multiplexed with PC1.
Port D pin, when programmed as output,
Product Specification
Architectural Overview
15