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參數資料
| 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： | 16/58頁 |
| 文件大小： | 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
16 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 = 3401h / 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 08.
[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 18: I/O Port Base Address register bit description
Bit
Description
31-16(r)
I/O port Base address
A[31:16] always 0.
15-4
I/O port Base address
A[15:4]; programmable address space for control registers.
3-1
Always 000b
0
Always 1b
Table 19: Interrupt Register register bit description
Bit
Description
15:8
Interrupt pin
(read only)
Always 01h interrupt pin connected to INTA.
7:0
Interrupt line
Interrupt line routing information.
Table 20: EEPROM Status Register / Misc. register bit description
Bit
Description
0
EEPROM autoload status
If set, EEPROM autoload cycle is in progress.
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