CS8920A View Datasheet(PDF) - Cirrus Logic
Part Name
Description
MFG CO.
'CS8920A' PDF : 144 Pages View PDF
4.8 Plug n Play Resource Registers
CS8920A
Plug n Play Activation Register
Address: PacketPage base + 0330h
7
6
5
4
3
2
1
0
0
0
0
0
0
0
0
Active
BIT NAME
0
Active
DESCRIPTION
Until this bit is set the CS8920A will not respond to memory, IO (except PNP accesses)
and DMA accesses. When set the CS8920A will respond to modes that are enabled.
All other bits in this register are read as 0 after reset
0000
Plug n Play IO Range Check Register
7
6
5
4
0
0
0
0
Address: PacketPage base + 0331h
3
2
1
0
0
0
Check_Enable IO_Check
BIT NAME
DESCRIPTION
0
IO_Check
If the bit 1 (check enable) is set then when two IO_Check bit is clear the PNP read
port is read on 55 when IO_Check bit is set the PNP read port is read AA.
1
Check_Enable This bit is set to enable the IO range check.
DS238PP2
75
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