M16C62A Datasheet, PDF (147/242 Pages) Mitsubishi Electric Semiconductor – SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER

Programmable I/O Port
Mitsubishi microcomputers
M16C / 62A Group (80-pin)
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
Port Pi direction register (Note 1, 2)
b7 b6 b5 b4 b3 b2 b1 b0
Symbol
PDi (i = 0 to 10, except 8)
Address
03E216, 03E316, 03E616, 03E716, 03EA16
03EB16, 03EE16, 03EF16, 03F316, 03F616
When reset
0016
0016
Bit symbol
PDi_0
PDi_1
PDi_2
PDi_3
PDi_4
Bit name
Port Pi0 direction register
Port Pi1 direction register
Port Pi2 direction register
Port Pi3 direction register
Port Pi4 direction register
Function
0 : Input mode
(Functions as an input port)
1 : Output mode
(Functions as an output port)
(i = 0 to 10 except 8)
RW
PDi_5
Port Pi5 direction register
PDi_6
Port Pi6 direction register
PDi_7
Port Pi7 direction register
Note 1: Set bit 2 of protect register (address 000A16) to “1” before rewriting to
the port P9 direction register.
Note 2: P1, P44 to P47, P72 to P75, P91 are not connected to the outside, but
are present within the microcomputer, so set the direction registers to
output so that these pin are reserved for future use.
Port P8 direction register
b7 b6 b5 b4 b3 b2 b1 b0
Symbol
PD8
Address
03F216
When reset
00X000002
Bit symbol
PD8_0
PD8_1
PD8_2
PD8_3
Bit name
Port P80 direction register
Port P81 direction register
Port P82 direction register
Port P83 direction register
Function
0 : Input mode
(Functions as an input port)
1 : Output mode
(Functions as an output port)
PD8_4
Port P84 direction register
Nothing is assigned.
In an attempt to write to this bit, write “0”. The value, if read, turns out to be
indeterminate.
PD8_6
PD8_7
Port P86 direction register
Port P87 direction register
0 : Input mode
(Functions as an input port)
1 : Output mode
(Functions as an output port)
RW
Figure 1.18.6. Direction register
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