EZ80F91MCU ZILOG [Zilog, Inc.], EZ80F91MCU Datasheet - Page 45

• Manufacturer Part Number: EZ80F91MCU
• Description: eZ80Acclaim-TM Flash Microcontrollers
• Manufacturer: ZILOG [Zilog, Inc.]

Table 2. Pin Identification on the eZ80F91 Device (Continued)
PS019209-0504
LQFP
Pin #
107
108
109
110
111
112
113
Note: *PHY represents the physical layer of the OSI model.
BGA
Pin#
C11
B12
A12
A11
B11
C10
D9
Symbol
PB7
MOSI
V
SDA
SCL
PHI
V
V
SS
DD
SS
Function
GPIO Port B
SPI Master
Out Slave In
Ground
I
I
Clock
System Clock Output
Power Supply
Ground
2
2
C Serial Data Bidirectional
C Serial
P R E L I M I N A R Y
Signal Direction
Bidirectional with
Schmitt-trigger input
Bidirectional with
Schmitt-trigger input
Bidirectional
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 Port B
pin, when programmed as output,
can be selected to be an open-
drain or open-source output.
The MOSI line is configured as an
output when the eZ80F91 device
is an SPI master device and as
an input when the eZ80F91
device is an SPI slave device.
This signal is multiplexed with
PB7.
Ground.
This pin carries the I
signal.
This pin is used to receive and
transmit the I
This pin is an output driven by the
internal system clock. It can be
used by the system for
synchronization with the eZ80F91
device.
Power Supply.
Ground.
Product Specification
2
C clock.
Architectural Overview
eZ80F91 MCU
2
C data
26