ucb1500 NXP Semiconductors, ucb1500 Datasheet - Page 42

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

Philips Semiconductors
9397 750 07443
Product specification
8.7.1 [Base address + 4]: Status port 1
8.7.2 [Base address + 8]: Reserved
8.7.3 [Base address + c]: Status port 2 (AC97 interrupt status)
8.7 Status port registers
The following registers are used for event notification. If the corresponding interrupt is
enabled, an interrupt will be generated when an event occurs. For each event, write
‘1’ to the corresponding bit to clear it.
Table 65: Status port 1 register bit description
Table 66: Status port 2 (AC97 interrupt status) register bit description
Bit
31-28(r)
27(r)
26(r)
25-24
23(r)
22(r)
21-20
19(r)
18(r)
17-16
15(r)
14(r)
13-12
11(r)
10(r)
9-8
7(r)
6(r)
5-4
3(r)
2(r)
1-0
Bit
31-25
24(r)
23-0
Description
Reserved.
Transmit DMA #0 error
Transmit DMA #1 error
Reserved.
Transmit DMA #0 DT done/Hold
Transmit DMA #1 DT done/Hold
Reserved.
Transmit DMA #0 done
Transmit DMA #1 done
Reserved.
Counter #1 interrupt
Counter #0 interrupt
Reserved.
Receive DMA #0 error
Receive DMA #1 error
Reserved.
Receive DMA #0 DT done/Hold
Receive DMA #1 DT done/Hold
Reserved.
Receive DMA #0 done
Receive DMA #1 done
Reserved.
Description
Reserved.
AC97 GPIO_INT occurred
Reserved.
Rev. 03 — 7 July 2000
PCI to AC97 bridge/host controller
© Philips Electronics N.V. 2000. All rights reserved.
UCB1500
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