MB86296 Datasheet, PDF (45/352 Pages) Fujitsu Component Limited. – PCI Graphics Controller Specification

FUJITSU LIMITED PRELIMINARY AND CONFIDENTIAL
3. PROCEDURE OF THE HARDWARE INITIALIZATION
3.1. Hardware reset
1.Do the hardware reset. (see section 15.3.2)
2.After the hardware reset, set the CCF(Change of Frequency) register (section 13.2.1).
In being unstable cycle after the hardware reset, keep 32 bus cycles open.
3. Turn OFF a pre-fetch function.
Set the TRC (HostBase+00b8h) register.
Please set 0x00000002 (bit1 set 1 and other set 0).
4.Set the graphics memory interface register, MMR (Memory I/F Mode Register).
After setting the CCF register, take 200 us to set the MMR register.
In being unstable memory access cycle, keep 32 bus cycles open.
5.Other registers, except for the CCF register and the MMR register, should be set after
setting the CCF register.
In case of not using memory access, the MMR register could be set in any order after
the CCF register is set.
3.2. Re-reset
1. Reset XRST signal.
2. See section 3.1 for registers setting after the procedure of re-reset.
3.3. Software reset
1. Set the value of the SRST register (see section 13.2.1) for re-reset.
2. It is not necessary to reset the CCF register and the MMR register again.
MB86296S <Coral-PA>
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Specification Manual Rev0.1