M306V2ME Datasheet, PDF (242/276 Pages) Mitsubishi Electric Semiconductor – SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER and ON-SCREEN DISPLAY CONTROLLER

MITSUBISHI MICROCOMPUTERS
M306V2ME-XXXFP
M306V2EEFP
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER
and ON-SCREEN DISPLAY CONTROLLER
Port control register
b7 b6 b5 b4 b3 b2 b1 b0
Symbpl
PCR
Address
03FF16
When reset
0016
Bit symbol
Bit name
PCR0
Port P1 control register
Function
RW
0: When port P1 is input port, port
input level is read. When port P1 is
output port, the contents of port P1
register is read.
1: The contents of port P1 register is
read through port P1 is input/output
port.
Nothing is assigned.
In an attempt to write to this bit, write “0.” The value, if read, turns out to be “0.”
Figure 2.17.14 Port control register
Pull-up control register 0
b7 b6 b5 b4 b3 b2 b1 b0
Symbol
PUR0
Address
03FC16
Bit symbol
PU00
PU01
PU02
PU03
PU04
PU05
PU06
PU07
Bit name
P00 to P03 pull-up
P04 to P07 pull-up
P10 to P13 pull-up
P14 to P17 pull-up
P20 to P23 pull-up
P24 to P27 pull-up
P30 to P33 pull-up
P34 to P37 pull-up
When reset
0016
Function
The corresponding port is pulled
high with a pull-up resistor
0 : Not pulled high
1 : Pulled high
RW
Figure 2.17.15 Pull-up control register 0
Rev. 1.0
242