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8019AS.doc
2001-05-10
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SPECIFICATION
RTL8019AS
39
A16-14
CEB
IO7-0
BA16-14
BD7-0
A13-0
WEB
OEB
SA13-0
SMEMRB
SMEMWB
BCSB
29F010
Through
RTL8019AS
From
ISA Bus
In this case, the BROM page mode is used. Before either to read or write BROM, the appropriate ROM page
must be set in the BPAGE (page3, offset 02h) register first. The RTL8019AS will always reflect the content
of BPAGE onto the BA14-21 bus. When RTL8019AS decodes a valid BROM read or write command, it
asserts BCSB low. Note the flash memory write must be enabled through the RTL8019AS's FMWP register
before the host's flash write command.