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參數(shù)資料
| 型號： | UCB1500 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 總線控制器 |
| 英文描述： | PCI to AC97 bridge/host controller |
| 中文描述： | PCI BUS CONTROLLER, PQFP80 |
| 封裝： | 12 X 12 MM, 1.40 MM HEIGHT, PLASTIC, MS-026, SOT-315-1, LQFP-80 |
| 文件頁數(shù)： | 9/58頁 |
| 文件大?。?/td> | 1001K |
| 代理商： | UCB1500 |
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Philips Semiconductors
UCB1500
PCI to AC97 bridge/host controller
Objective specification
Rev. 01 — 4 February 2000
9 of 58
9397 750 06854
Philips Electronics N.V. 2000. All rights reserved.
[0F]: BIST (read only):
Always 0; no built-in test capability.
[10]: I/O port base address
[2C-2F] Subsystem ID/Subsystem Vendor ID (read only):
Programmable through
EEPROM interface or through register 6e-6ch. Default Value = 3400h/1131h.
[34] Capability pointer (read only):
80h points to start offset of power management
registers.
[3C]: Interrupt Register
[40-43] Device ID Write / Vendor ID Write:
This register contains a copy of the
Device ID and Vendor ID registers. Writing to this register will update the original
Device ID and Vendor ID registers (offset 0h - 3h).
[44h]: Revision ID:
Same as offset 08h.
[45-47] Class code Write:
This register contains a copy of the Class Code registers.
Writing to this register will update the original Class Code registers (offset 9h-Bh).
[48]: EEPROM status register /Misc
Table 8:
Bit
31-16(r)
I/O Port Base Address register bit description
Description
I/O port Base address
A[31:16] always 0.
I/O port Base address
A[15:4]; programmable address space for control registers.
Always 000b
Always 1b
15-4
3-1
0
Table 9:
Bit
15:8
Interrupt Register bit description
Description
Interrupt pin
(read only)
Always 01h; interrupt pin connected to INTA.
Interrupt line
Interrupt line routing information.
7:0
Table 10: EEPROM Status register bit description
Bit
Description
0
EEPROM autoload status
If set, EEPROM autoload cycle is in progress.
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