hi all,
i have a custom board based on SA1110 . �i have connected igs cyberpro 5000 to static
chip select 5.
According to the reference manual they are telling while using linear
mode (which we are using ) the 32 bit address should be 0xHHLLXXXX we have enabled
hardware enable linear mode (MOD26 is pulled up). As per the cyberpro ,�we made HH
�as physical address and �LL � as ( 0x80 ) to �enable �memory port access (23rd bit
=1)and little endian mode
(22nd bit =0). When i tried to write (0x18 ) in 46E8 , i am not getting �ready signal
from the VGA . And system gets hanged
a) linear mode is enbled
Hard ware enabled linear access (MOD26 is pulled up)
b) Memory port access
Bit 23 is made 1
c) little endian mode
Bit 22 is made zero
d) Non PCI bus mode
(RA1, RA2, and RA3 are pulled up)
IBM403X bus is selected.
Byte enabled read write access.
The most of the register sets of cyberpro 5000 contains odd address like (3CE,
3CF....).
Since the � SA1110 �which is not accecpting the address which is not on the 4 byte
boundry he himself changing the address to 4 byte boundry by rotating the address.
When i tried to give the odd address i am not getting the chip select from the
processor. And when i tried to write in 4 byte boundry address (46E8) i am not getting
the video ready signal.
how to address the cyber pro.
can any one please help me in this.
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