HD6413007F20 Datasheet, PDF (282/798 Pages) Renesas Technology Corp – Hardware Manual Renesas 16-Bit Single-Chip Microcomputer H8 Family/H8/300H Series

8. I/O Ports
Port 6
Port 6 pins
P6₇/φ
P6₂/BACK
P6₁/BREQ
P6₀/WAIT
P6₇ (input)/φ(output)
P6₂ (input/output)/BACK (output)
P6₁ (input/output)/BREQ (input)
P6₀ (input/output)/WAIT (input)
Figure 8.2 Port 6 Pin Configuration
8.3.2 Register Configuration
Table 8.4 summarizes the registers of port 6.
Table 8.4 Port 6 Registers
Address*
Name
Abbreviation R/W
H'EE005
Port 6 data direction register P6DDR
W
H'FFFD5
Port 6 data register
P6DR
R/W
Note: * Lower 20 bits of the address in advanced mode.
Initial Value
H'80
H'80
Port 6 Data Direction Register (P6DDR): P6DDR is an 8-bit write-only register that can select
input or output for each pin in port 6.
Bits 7 to 3 are reserved. Bit 7 is fixed at 1, and cannot be modified.
Bit
Initial value
Read/Write
7
6
5
4
3
2
1
0
⎯ P6₆DDR P6₅DDR P6₄DDR P6₃DDR P6₂DDR P6₁DDR P6₀DDR
1
0
0
0
0
0
0
0
⎯
W
W
W
W
W
W
W
Reserved bit
Port 6 data direction 2 to 0
These bits select input or
output for port 6 pins
Rev.5.00 Sep. 12, 2007 Page 252 of 764
REJ09B0396-0500