deveopmen
Programmable I/O Port
Preliminary Specifications REV.D
Specifications in this manual are tentative and subject to change.
Mitsubishi microcomputers
M16C/80 (100-pin version) group
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
197
Figure 1.26.9. Function select register B (2)
Function select register B3
Symbol
PSL3
Address
03B7
16
When reset
XXXXXXXX
2
b7
b6
b5
b4
b3 b2
b1
b0
W
R
Bit name
Function
Nothing is assigned.
When write, set "0". When read, the content is indeterminate.
Port P9
1
peripheral function
select bit
PSL3_1
0 : SCL
3
output
1 : STxD
3
output
Port P9
3
peripheral function
PSL3_3
0 : Input peripheral function
enabled (Except DA0 output)
(Note)
1 : Input peripheral function
disabled (DA0 output)
Port P9
4
peripheral function
PSL3_4
Port P9
5
peripheral function
PSL3_5
Port P9
6
peripheral function
PSL3_6
Port P9
7
peripheral function
select bit
PSL3_7
0 : SCL
4
output
1 : STxD
4
output
A
AA
AA
Nothing is assigned.
When write, set "0". When read, the content is indeterminate.
AA
Bit symbol
0 : Input peripheral function
enabled (Except DA1 output)
(Note)
1 : Input peripheral function
disabled (DA1 output)
0 : Input peripheral function
enabled (Except ANEX0 use)
(Note)
1 : Input peripheral function
disabled (ANEX0 use)
0 : Input peripheral function
enabled (Except ANEX1 use)
(Note)
1 : Input peripheral function
disabled (ANEX1 use)
Note: Although DA0, DA1 output and ANEX0, ANEX1 can be used when "0" is set in
these bits, the power supply may be increased.
Figure 1.26.10. Function select register C
Function select register C
Symbol
PSC
Address
03AF
16
When reset
00
16
W
R
b7
b6
b5
b4
b3
b2
b1
b0
Port P7
2
peripheral subfunction
select bit (Enabled when PS1_2 =
1 and PSL1_2 = 0)
PSC_0
(Note 1)
PSC_7
(Note 2)
0 : Enabled
1 : Disabled
Bit name
Bit symbol
0 : CLK2 output
1 : V phase output
Function
Note 1: Set this bit to "0" when PSL1_2 = "1".
Note 2: When this bit is "1", key input interrupt for interrupt controller is disabled
regardless of port input and setting of interrupt control register.
When changing this bit, set key input interrupt disabled by key input interrupt
control register.
Key input interrupt disable bit
Nothing is assigned.
When write, set "0". When read, the content is indeterminate.
AA
AA