MB86967 Datasheet, PDF (75/129 Pages) Fujitsu Component Limited. – LAN Controller with PC Card, ISA Bus, and General-purpose Bus Interfaces

5. Operation Sequence in ISA Bus Mode
MB86967
Operable state
Power on
Write to reset register.
RESET pin = High
RESET pin = High
200 ns WAIT?
NO
YES
200 ns WAIT?
NO
YES
Write 1 to
ENA DLC bit
of DLCR6.
Mode?
Jamperless
Jamper
NO
50 ms WAIT?
YES
Is crystal oscillation
NO
YES
RESET pin = Low
Initialized state
Write 0 to STBY bit
of DLCR7.
Set DLCR, MAR, and
BMPR registers.
NO
BMPR14 Bit 4 = 0?
YES
Standby state
Shutdown stat
*
NO
200 µs WAIT?
YES
Write 0 to ENA DLC bit
of DLCR6.
Write 1 to STBY bit
of DLCR7.
* : The time for setting the DLCR, MAR, and BMPR registers may be included in the waiting time of 200 µs.
• Standby state: The clock to each circuit stops but crystal oscillation does not.
• Shutdown state: Crystal oscillation stops.
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