HD6433937 Datasheet, PDF(69/521 Page) Hitachi Semiconductor – Hardware Manual

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HD6433937 Datasheet, PDF (69/521 Pages) Hitachi Semiconductor – Hardware Manual

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Table 2-12 lists the pairs of registers that share identical addresses. Table 2-13 lists the registers

that contain write-only bits.

Table 2-12 Registers with Shared Addresses

Register Name

Abbreviation

Timer counter and timer load register C

TCC/TLC

Port data register 1*1

PDR1

Port data register 2*1, *2

PDR2

Port data register 3*1

PDR3

Port data register 4*1

PDR4

Port data register 5*1

PDR5

Port data register 6*1

PDR6

Port data register 7*1

PDR7

Port data register 8*1

PDR8

Port data register 9*1

PDR9

Port data register A*1

PDRA

Notes: 1. Port data registers have the same addresses as input pins.

2. I/O port for interfacing to FLEXâ¢ decoder.

Address

H'FFB5

H'FFD4

H'FFD5

H'FFD6

H'FFD7

H'FFD8

H'FFD9

H'FFDA

H'FFDB

H'FFDC

H'FFDD

Table 2-13 Registers with Write-Only Bits

Register Name

Abbreviation

Port control register 1

PCR1

Port control register 2*

PCR2

Port control register 3

PCR3

Port control register 4

PCR4

Port control register 5

PCR5

Port control register 6

PCR6

Port control register 7

PCR7

Port control register 8

PCR8

Port control register 9

PCR9

Port control register A

PCRA

Timer control register F

TCRF

Note: * I/O port for interfacing to FLEXâ¢ decoder.

Address

H'FFE4

H'FFE5

H'FFE6

H'FFE7

H'FFE8

H'FFE9

H'FFEA

H'FFEB

H'FFEC

H'FFED

H'FFB6

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