M30222 Datasheet, PDF (176/237 Pages) Mitsubishi Electric Semiconductor – SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER

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Specifications in this manual are tentative and subject to change
MITSUBISHI MICROCOMPUTERS
M30222 Group
Rev. G
I/O Ports
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
Pull-up control register 0
b7 b6 b5 b4 b3 b2 b1 b0
XXXXXX
Symbol
PUR0
Address
03FC16
Bit symbol
Bit name
Nothing is assigned. Write "0"
when writing to these bits
PU06
PU07
P30 to P33 pull-up
P34 to P37 pull-up
When reset
0016
Function
RW
The corresponding port is pulled
high with a pull-up resistor
0 : Not pulled high
1 : Pulled high
OO
OO
OO
Pull-up control register 1
b7 b6 b5 b4 b3 b2 b1 b0
Symbol
PUR1
Address
03FD16
When reset
0016 (Note 1)
Bit symbol
PU10
PU11
Bit name
P40 to P43 pull-up
P44 to P47 pull-up
Nothing is assigned. Write "0" when
writing to these bits.
Function
The corresponding port is pulled
high with a pull-up resistor
0 : Not pulled high
1 : Pulled high
RW
OO
PU14
PU15
P60 to P63 pull-up
P64 to P67 pull-up
PU16
PU17
P7 2, P73 pull-up (Note 2)
P74 to P77 pull-up
Note 1: When the V CC level is being impressed to the CNV SS terminal, this register becomes
to 0216 when reset (PU11 becomes to “1”).
Note 2: Because P70 and P71 are n-channel open-drain ports, the pull up is not available.
Pull-up control register 2
b7 b6 b5 b4 b3 b2 b1 b0
Symbol
PUR2
Address
03FE16
When reset
0016
Bit symbol
PU20
PU21
PU22
PU23
PU24
PU25
Bit name
P80 to P82 pull-up
P84 to P86 pull-up
(Except P83)
P90 to P93 pull-up
P94 to P97 pull-up
P100 to P103 pull-up
P104 to P107 pull-up
Function
The corresponding port is pulled
high with a pull-up resistor
0 : Not pulled high
1 ^: Pulled high
Nothing is assigned.
Write "0" when writing to these bits. When read, the value is indeterminate.
RW
Fig. 1.147. Pull-up register
1-177