W83782D Datasheet, PDF (30/73 Pages) Winbond – MONITORING IC

Priliminary W83782D
7. REGISTERS AND RAM
7.1 Address Register (Port x5h)
Data Port:
Power on Default Value
Attribute:
Size:
Port x5h
00h
Bit 6:0 Read/write , Bit 7: Read Only
8 bits
7 6 5 4 32 1 0
Data
Bit7: Read Only
The logical 1 indicates the device is busy because of a Serial Bus transaction or another ISA bus
transaction. With checking this bit, multiple ISA drivers can use W83782D without interfering
with each other or a Serial Bus driver.
It is the user's responsibility not to have a Serial Bus and ISA bus operations at the same time.
This bit is:
Set: with a write to Port x5h or when a Serial Bus transaction is in progress.
Reset: with a write or read from Port x6h if it is set by a write to Port x5h, or when the Serial Bus
transaction is finished.
Bit 6-0: Read/Write
Bit 7
Busy
(Power On default 0)
Bit 6
A6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Address Pointer (Power On default 00h)
A5
A4
A3
A2
A1
Bit 0
A0
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