eZ80L92 MCU
Product Specification
17
Table 1. 100-Pin LQFP Pin Identification of eZ80L92 MCU (Continued)
Pin No Symbol
Function
Signal Direction
Description
80
81
82
83
PC4
GPIO Port C
Bidirectional
This pin can be used for GPIO. 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.
DTR1
PC5
Data Terminal Output, Active Low
Ready
Modem control signal to the UART.
This signal is multiplexed with PC4.
GPIO Port C
Bidirectional
This pin can be used for GPIO. 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.
DSR1
PC6
Data Set
Ready
Input, Active Low
Bidirectional
Modem status signal to the UART.
This signal is multiplexed with PC5.
GPIO Port C
This pin can be used for GPIO. 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.
DCD1
PC7
Data Carrier
Detect
Input, Active Low
Bidirectional
Modem status signal to the UART.
This signal is multiplexed with PC6.
GPIO Port C
This pin can be used for GPIO. 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.
RI1
Ring Indicator Input, Active Low
Modem status signal to the UART.
This signal is multiplexed with PC7.
PS013014-0107
Architectural Overview
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