MB86967 Datasheet, PDF(58/129 Page) Fujitsu Component Limited. – LAN Controller with PC Card, ISA Bus, and General-purpose Bus Interfaces

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MB86967 Datasheet, PDF (58/129 Pages) Fujitsu Component Limited. – LAN Controller with PC Card, ISA Bus, and General-purpose Bus Interfaces

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MB86967

6. BMPR17: E2PROM Data Register

BMPR17 is an external E2PROM data port.

Read

Write

Initial Value

Bit 7

EDIO

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit no. Bit name

7 EDIO

6 to 0 Not used

Operation

Read

Write

Read

Write

Value

Function

Port for reading output data from E2PROM

Port for writing input data to E2PROM

The read values of these bits are undefined.

Always write 0s to these bits at writing.

Bit 0

7. BMPR18: I/O Base Address Register

BMPR18 updates and displays the I/O base addresses (valid only in jumperless mode).

Read

Write

Initial Value

Bit 7

IOBA7

Bit 6

IOBA6

Bit 5

IOBA5

Bit 4

IOBA4

Bit 3

IOBA3

Bit 2

IOBA2

Bit 1

IOBA1

Bit 0

IOBA0

Bit no. Bit name Operation

7 to 0 IOBA7 to IOBA0 Read

Value

Function

Each time this register is read, the I/O base address select

signals (IOSEL2 to IOSEL0) are incremented to update the

I/O base addresses. The updated values can be read from

bits 2 to 0 of BMPR19. The read values of this register have

no meaning.

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