EM78P5840N/41N/42N
8-Bit Microcontrollers
In IRC or ERIC mode, this pin is defined as Port 70, and P70S will be ignored.
R70, Page 0 is a Port 70 I/O data register. The IOC register can be used to
define each bit either as input or output.
Port 71: is shared with /RESET pin.
By setting P71S in code option, Port 71 is defined to Input pin or /RESET pin.
This is an input only pin. P71 does not support internal pull-high function. If
you want to use P71 interrupt, external pull high is necessary.
Port 73 ~ Port 76: Port 7 I/O pins
The IOC register can be used to define each bit either as input or output.
IOC70, Page 1: is Port 70 pull high control register.
This bit only exist when Port 70 is set as general purpose IO.
Port 9
Pin
P97
P96
P95
P94
P93
P92
P91
P90
Register R97, Page 0 R96, Page 0 R95, Page 0 R94, Page 0 R93, Page 0 R92, Page 0 R91, Page 0 R90, Page 0
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
IOC96,
Page 0
IOC96,
Page 0
IOC95,
Page 0
IOC94,
Page 0
IOC93,
Page 0
IOC92,
Page 0
IOC91,
Page 0
IOC90,
Page 0
I/O Control
Shared
with
-
-
-
CIN
AD1
AD1
AD1
AD1
P90 ~ P97: Port 9 I/O pins
The IOC register can be used to define each bit either as input or output.
Port C
Pin
PC2
RC1, Page0
I/O
PC1
RC1, Page0
I/O
Register
I/O control
IOCC2, Page0 IOCC1, Page0
PWM2 PWM1
Shared with
PC1~PC2: Port C I/O pins
The IOC register can be used to define each bit either as input or output.
Product Specification (V1.0) 04.25.2006
(This specification is subject to change without further notice)
• 35
ELAN [ ELAN MICROELECTRONICS CORP ]
