HD6475348R Datasheet, PDF (183/487 Pages) Hitachi Semiconductor – Single-Chip Microcomputer

Pin
Mode 3
Mode 4
Mode 1 and 2 and
Single-Chip Mode
P63 / PW3 / A19 (output) P63 (input) / IRQ5 (input) / P63 (input/output) /
IRQ5 / A19
A19 (output)
IRQ5 (input) /
PW3 (output)
P62 / PW2 / A18 (output) P62 (input) / IRQ4 (input) / P62 (input/output) /
Port
IRQ4 / A18
A18 (output)
IRQ4 (input) /
6
PW2 (output)
P61 / PW1 / A17 (output) P61 (input) / IRQ3 (input) / P61 (input/output) /
IRQ3 / A17
A17 (output)
IRQ3 (input) /
PW1 (output)
P60 / IRQ2 / A16 (output) P60 (input) / IRQ2 (input) / P60 (input/output) /
A16
A16 (output)
IRQ2 (input)
Figure 9-15 Pin Functions of Port 6
9.7.2 Port 6 Registers
Register Configuration: Table 9-10 lists the registers of port 6.
Table 9-10 Port 6 Registers
Name
Port 6 data direction register
Port 6 data register
System control register 2
Abbreviation
P6DDR
P6DR
SYSCR2
Read/Write
W
R/W
R/W
Initial Value
H'F0
H'F0
H'80
Address
H'FE89
H'FE8B
H'FEFD
1. Port 6 Data Direction Register (P6DDR)—H'FE89
Bit
7
6
5
4
3
2
1
0
—
—
—
— P63DDR P62DDR P61DDR P60DDR
Initial value
1
1
1
1
0
0
0
0
Read/Write
—
—
—
—
W
W
W
W
P6DDR is an 8-bit register that selects the direction of each pin in port 6.
Single-Chip Mode and Expanded Minimum Modes: A pin functions as an output pin if the
corresponding bit in P6DDR is set to 1, and as in input pin if the bit is cleared to 0.
Bits 7 to 4 are reserved. They cannot be modified and are always read as 1.
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