MB86296 Datasheet, PDF (194/352 Pages) Fujitsu Component Limited. – PCI Graphics Controller Specification

FUJITSU LIMITED PRELIMINARY AND CONFIDENTIAL
TRC (Transfer Rate Change)
Register
address
HostBaseAddress + B8H
Bit number 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Bit field name
Reserved
*1
R/W
R0W0
Initial value
0
00
*1 Reserved
ON/OFF of the pre-fetch function at the time of slave read is changed. Please set 0x00000002 at
the hardware initialization, for turning OFF a pre-fetch function. Except for the hardware
initialization, when you change a setup of this bit into 1 from 0, please perform the following
procedure.
After slave burst READ to the last graphic memory,
Write 0x00000000 to the domain which is not using a graphics memory.
And read Host interface register (ex. HostBase+BFFC)
Then, set this bit to 1.
when you change a setup of this bit into 0 from 1, there is especially no restriction.
Bit 1 NP (No pre-fetch mode)
0: pre-fetch function ON
1: pre-fetch function OFF
MB86296S<Coral-PA>
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Specification Manual Rev0.1