M16C30_02 Datasheet, PDF (143/178 Pages) Renesas Technology Corp – SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER

Programmable I/O Port
Mitsubishi microcomputers
M16C / 30 Group
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
Port Pi register (Note 2)
b7 b6 b5 b4 b3 b2 b1 b0
Symbol
Pi (i = 0 to 10, except 8)
Address
03E016, 03E116, 03E416, 03E516, 03E816
03E916, 03EC16, 03ED16, 03F116, 03F416
When reset
Indeterminate
Indeterminate
Bit symbol
Bit name
Function
RW
Pi_0
Pi_1
Pi_2
Pi_3
Pi_4
Pi_5
Port Pi0 register
Port Pi1 register
Port Pi2 register
Port Pi3 register
Port Pi4 register
Port Pi5 register
Data is input and output to and from
each pin by reading and writing to
and from each corresponding bit
0 : “L” level data
1 : “H” level data (Note 1)
(i = 0 to 10 except 8)
Pi_6
Port Pi6 register
Pi_7
Port Pi7 register
Note 1: Since P70 and P71 are N-channel open drain ports, the data is high-impedance.
Note 2: In memory expansion and microprocessor mode, the contents of
corresponding port Pi register of pins A0 to A19, D0 to D15, CS0 to CS3,
RD, WRL/WR, WRH/BHE, ALE, RDY, HOLD, HLDA and BCLK cannot
be modified.
Port P8 register
b7 b6 b5 b4 b3 b2 b1 b0
Symbol
P8
Address
03F016
When reset
Indeterminate
Bit symbol
P8_0
P8_1
P8_2
P8_3
P8_4
P8_5
P8_6
P8_7
Bit name
Port P80 register
Port P81 register
Port P82 register
Port P83 register
Port P84 register
Port P85 register
Port P86 register
Port P87 register
Function
RW
Data is input and output to and from
each pin by reading and writing to
and from each corresponding bit
(except for P85)
0 : “L” level data
1 : “H” level data
Figure 1.20.7. Port register
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