ucb1500 NXP Semiconductors, ucb1500 Datasheet - Page 35

• Manufacturer Part Number: ucb1500
• Description: Pci To Ac97 Bridge/host Controller
• Manufacturer: NXP Semiconductors

Philips Semiconductors
9397 750 07443
Product specification
8.6.4 [00c3]: DMA Channel 0 input/output slot enable / miscellaneous
8.6.5 [00c4]: AC97 DMA Channel 1 rate
8.6.6 [00c5]: DMA Channel 1 output slot enable
8.6.7 [00c6]: DMA Channel 1 input slot enable / miscellaneous
8.6.8 [00c7]: SMA Channel 1 input/output slot enable / miscellaneous
Table 53: DMA Channel 0 input slot enable / miscellaneous register bit description
[1]
The following 4 registers are similar to the previous, except that they control data on
Channel 1 (which uses DMA controller #2).
Bit
15-14
13-12
11-10
9-8
7-6
5
4
3
2
1-0
Optional feature, use only if GPIO function is not required.
Description
Input slot 12 enable
Enables receive channel #0 DMA to store data received on AC97 slot 12.
(Same encoding as regC2.)
Input slot 9 enable
Enables receive channel #0 DMA to store data received on AC97 slot 9.
(Same encoding as regC2.)
Input slot 8 enable
Enables receive channel #0 DMA to store data received on AC97 slot 8.
(Same encoding as regC2.)
Input slot 7 enable
Enables receive channel #0 DMA to store data received on AC97 slot 7.
(Same encoding as regC2.)
Output slot 12 enable
Enables transmit channel #0 DMA to output data to AC97 output slot 12.
(Same encoding as regC1.)
PCM output left/right surround channel mono
If set, transmit channel #0 DMA will output the same data on the AC97 output
slots 7 and 8. Only data for 1 slot will be stored in memory.
PCM output left/right surround channel bind
If set, transmit channel #0 DMA will store data to be transmitted on AC97 output
slot 7 and 8 together in such a way that bits[3-0] of slot 7 and bits [19-16] of slot 8
will be stored as 1 byte.
PCM output left/right channel mono
If set, transmit channel #0 DMA will output the same data on the AC97 output
slots 3 and 4. Only data for 1 slot will be stored in memory.
PCM output left/right channel bind
If set, transmit channel #0 DMA will store data to be transmitted on AC97 output
slot 3 and 4 together in such a way that bits[3-0] of slot 3 and bits[19-16] of slot 4
will be stored as 1 byte.
Handset ADC output slot enable
Enables transmit channel #0 DMA to output data to AC97 output slot 11.
(Same encoding as in regC1.)
Rev. 03 — 7 July 2000
[1]
[1]
PCI to AC97 bridge/host controller
© Philips Electronics N.V. 2000. All rights reserved.
UCB1500
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