ez80f91 ZiLOG Semiconductor, ez80f91 Datasheet - Page 23

• Manufacturer Part Number: ez80f91
• Description: Ez80 Acclaimplus!? Connectivity Assp Ez80f91 Assp
• Manufacturer: ZiLOG Semiconductor

PS027001-0707
Table 2. Pin Identification on the eZ80F91 Device (Continued)
LQFP
Pin No
92
93
94
BGA
Pin No Symbol
G9
F12
F11
PC2
RTS1
PC3
CTS1
PC4
DTR1
Function
GPIO Port C
GPIO Port C
GPIO Port C
Request to
Send
Clear to Send
Data Terminal
Ready
Signal Direction Description
Bidirectional with
Schmitt-trigger
input
Output, Active
Low
Bidirectional with
Schmitt-trigger
input
Schmitt-trigger
input, Active Low
Bidirectional with
Schmitt-trigger
input
Output, Active
Low
This pin is used for GPIO. It is
individually programmed as input or
output and is also used individually
as an interrupt input. Each Port C
pin, when programmed as output is
selected to be an open-drain or
open-source output. Port C is
multiplexed with one UART.
Modem control signal from UART.
This signal is multiplexed with PC2.
This pin is used for GPIO. It is
individually programmed as input or
output and is also used individually
as an interrupt input. Each Port C
pin, when programmed as output is
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 PC3.
This pin is used for GPIO. It is
individually programmed as input or
output and is also used individually
as an interrupt input. Each Port C
pin, when programmed as output is
selected to be an open-drain or
open-source output. Port C is
multiplexed with one UART.
Modem control signal to the UART.
This signal is multiplexed with PC4.
Product Specification
Architectural Overview
eZ80F91 ASSP
15