Dma Control Registers - Analog Devices ADSP-219 Series Hardware Reference Manual

ADSP-2192 Peripheral Device Control Registers
AC'97 Codec Register Space, Secondary Codec 2
(AC97EXT2) Register
Table B-20. AC'97 External Codec Space 2 Registers
Register Description
Name
AC97EXT2 AC'97 External
Codec Space 2.
External Second-
ary Codec 2 Reg-
ister
PCI DMA Address, Count Registers
The PCI DMA registers described in the following sections refer to the
Address generator block (shown in
Mastering. Use these registers to specify general addressing information.

DMA Control Registers

These registers control bus mastering transactions.
PCI DMA Control Registers
All four PCI DMA control registers, listed below, share the same bit struc-
ture and bit descriptions. Refer to
Modes" on page 7-12
• DMA PCI Control/Status - PCI DMA Channel Control (
ister
• DMA PCI Control/Status-Transmit (
B-46 ADSP-219x/2192 DSP Hardware Reference
PCI USB Address
Address
0x67F-0x600 0x067F-0x0600
Figure B-1 on page
"Setting I/O Processor—Host Port
for descriptions of the bits in these registers.
DSP DSP
I/O I/O
Page Address
0x06 0x7F-0x00
B-3) for PCI Bus
Tx0
)
Rx0 ) Reg-