M16C80 Datasheet, PDF (208/358 Pages) Renesas Technology Corp – RENESAS 16-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY / M16C/80 SERIES

M16C/80 Group
26. Programmable I/O Ports
Port Pi register (Note 1, 3)
b7 b6 b5 b4 b3 b2 b1 b0
Symbol
Pi (i = 0 to 15,
except 8, 11 and 14)
Address
03E016, 03E116, 03E416, 03E516,
03E816, 03E916, 03C016, 03C116,
03C516, 03C816, 03CC16, 03CD16,
03D116
When reset
Indeterminate
Port P8 register
Bit symbol
Bit name
Function
RW
PDi_0
PDi_1
PDi_2
PDi_3
Port Pi0 register
Port Pi1 register
Port Pi2 register
Port Pi3 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 2)
PDi_4
PDi_5
Port Pi4 register
Port Pi5 register
(i = 0 to 15 except 8, 11 and 14)
PDi_6
Port Pi6 register
PDi_7
Port Pi7 register
Note 1: In memory expansion and microprocessor mode, the contents of
corresponding port Pi direction register of pins A0 to A22, A23, D0 to D15, MA0
to MA12, CS0 to CS 3, WRL/WR/CASL, WRH/BHE/CASH, RD/DW, BCLK/
ALE/CLKOUT, HLDA/ALE, HOLD, ALE/RAS, and RDY are not changed.
Note 2: P70 and P71 are N-channel open drain ports and high inpedance outputs.
Note 3: Port P12, P13 and P15 registers exist in 144-pin version.
b7 b6 b5 b4 b3 b2 b1 b0
Symbol
P8
Address
03C416
When reset
Indeterminate
Bit symbol
PD8_0
PD8_1
PD8_2
PD8_3
PD8_4
PD8_5
PD8_6
PD8_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 26.6 Port register (1)
Rev.1.00 Aug. 02, 2005 ^{Page 197} of 329
REJ09B0187-0100