ADSP-2192 Peripheral Device Control Registers
B-12 ADSP-219x/2192 DSP Hardware Reference
0x05
0x00-0x7E
AC’97 Codec Register
Space,
Secondary Codec 1
DSP / PCI / USB
0x06
0x00-0x7E
AC’97 Codec Register
Space,
Secondary Codec 2
DSP / PCI / USB
0x07
Reserved
0x08
0x00-0x7F
DMA Address, Count
Registers
DSP / PCI
0x80-0x87
DMA Control Registers
DSP / PCI
0x88-0x8A
PCI Interrupt, Control
Registers
DSP / PCI
0x09
0x00-0xFF
PCI Configuration
Register Space, Function 0
DSP
1
/ PCI
0x0A
0x00-0xFF
PCI Configuration
Register Space, Function 1
DSP
1
/ PCI
0x0B
0x00-0xFF
PCI Configuration
Register Space, Function 2
DSP
1
/ PCI
0x0C
0x00-0x4F
USB DSP Registers
DSP / USB
0x0D-0xFF
Reserved
1 PCI configuration spaces should be accessed only by the DSP, and only during the boot process.
After the PCI interface has been configured, bit 2 (ConfRdy) of the PCI_CFGCTL register
should be set by the DSP. This allows the PCI interface access to these registers while at the same
time denying the DSP access.
Table B-2. Register Group Descriptions (Continued)
Page
Addresses
Descriptions
Access
permitted by
Refer to