EZ80F91MCU ZILOG [Zilog, Inc.], EZ80F91MCU Datasheet - Page 42
EZ80F91MCU
Manufacturer Part Number
EZ80F91MCU
Description
eZ80Acclaim-TM Flash Microcontrollers
Manufacturer
ZILOG [Zilog, Inc.]
Datasheet
1.EZ80F91MCU.pdf
(396 pages)
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Table 2. Pin Identification on the eZ80F91 Device (Continued)
PS019209-0504
LQFP
Pin #
97
98
99
100
Note: *PHY represents the physical layer of the OSI model.
BGA
Pin#
E12
E11
F9
E10
Symbol
PC7
RI1
V
V
PB0
IC0
EC0
DD
SS
Function
GPIO Port C
Ring Indicator Schmitt-trigger input,
Power Supply
Ground
GPIO Port B
Input Capture Schmitt-trigger input
Event Counter Schmitt-trigger input
P R E L I M I N A R Y
Signal Direction
Bidirectional with
Schmitt-trigger input
Active Low
Bidirectional with
Schmitt-trigger 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 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.
Modem status signal to the
UART. This signal is multiplexed
with PC7.
Power Supply.
Ground.
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.
Input Capture A Signal to Timer
1. This signal is multiplexed with
PB0.
Event Counter Signal to Timer 1.
This signal is multiplexed with
PB0.
Product Specification
Architectural Overview
eZ80F91 MCU
23
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