ez80190 ZiLOG Semiconductor, ez80190 Datasheet - Page 31

• Manufacturer Part Number: ez80190
• Description: Ez80190 Microprocessor
• Manufacturer: ZiLOG Semiconductor

PS006613-0306
Pin # Symbol
76
77
PD0
MISO0
SCL0
TxD0
PD1
MOSI0
RxD0
SDA0
Table 1. 100-Pin LQFP Pin Identification of the eZ80190 Device (Continued)
Function
GPIO Port D
Master In
Slave Out
I
Clock
Transmit Data Output
GPIO Port D
Master Out
Slave In
Receive Data
I
2
2
C Serial
C Serial Data Input/Output
Signal Direction
Input/Output
Input/Output
Input/Output
Input/Output
Input/Output
Input
PRELIMINARY
Description
The PD0 pin can be used for general-purpose I/
O. It can be individually programmed as an input
or output and can also be used individually as an
interrupt input. Each Port D pin, when
programmed as an output, can be selected to be
an open-drain or open-source output. Port D is
multiplexed with one channel of the UZI interface.
The MISO line is configured as an input when the
eZ80190 device is an SPI master device and as
an output when eZ80190 device is an SPI slave
device. This signal is multiplexed with PD0.
This pin is used to receive and transmit the I
clock. This signal is multiplexed with PD0.
The TxD0 pin is used by the UART to transmit
asynchronous serial data. This signal is
multiplexed with PD0.
The PD1 pin can be used for general-purpose I/
O. It can be individually programmed as an input
or output and can also be used individually as an
interrupt input. Each Port D pin, when
programmed as an output, can be selected to be
an open-drain or open-source output. Port D is
multiplexed with one channel of the UZI interface.
The MOSI line is configured as an output when
the eZ80190 device is an SPI master device and
as an input when the eZ80190 device is an SPI
slave device. This signal is multiplexed with PD1.
The RxD0 pin is used by the UART to receive
asynchronous serial data. This signal is
multiplexed with PD1.
The SDA0 pin carries the I
signal is multiplexed with PD1.
2
C data signal. This
Architectural Overview
2
C
17