eZ80L92 MCU
Product Specification
13
Table 1. 100-Pin LQFP Pin Identification of eZ80L92 MCU (Continued)
Pin No Symbol
Function
Signal Direction
Description
63
64
65
66
TCK
JTAG Test
Clock
Input
JTAG and ZDI clock input.
TRIGOUT
TDI
JTAG Test
Trigger Output
Output
Active High trigger event indicator.
JTAG Test
Data In
Bidirectional
Output
JTAG data input pin. Functions as
ZDI data I/O pin when JTAG is disabled.
TDO
JTAG Test
Data Out
JTAG data output pin.
67
68
V
Power Supply
GPIO Port D
Power Supply.
DD
PD0
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 D pin,
when programmed as output, can be
selected to be an open-drain or open-
source output. Port D is multiplexed with
one UART.
TxD0
IR_TXD
PD1
UART
Transmit Data
Output
This pin is used by the UART to transmit
asynchronous serial data. This signal is
multiplexed with PD0.
IrDA Transmit Output
Data
This pin is used by the IrDA encoder/
decoder to transmit serial data. This signal
is multiplexed with PD0.
69
GPIO Port D
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 D pin,
when programmed as output, can be
selected to be an open-drain or open-
source output. Port D is multiplexed with
one UART.
RxD0
Receive Data Input
This pin is used by the UART to receive
asynchronous serial data. This signal is
multiplexed with PD1.
IR_RXD
IrDA Receive Input
Data
This pin is used by the IrDA encoder/
decoder to receive serial data. This signal
is multiplexed with PD1.
PS013014-0107
Architectural Overview
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