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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)： | 31/58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
31 of 58
9397 750 06854
Philips Electronics N.V. 2000. All rights reserved.
8.3.4
[0065]: General purpose counter #0
See register 62 for description.
8.3.5
[0066-0067]: Reserved
8.4 EEPROM
8.4.1
[0068]: EEPROM data register
This register does not control the EEPROM state machine. These data are read/write
data for the EEPROM auto mode.
8.4.2
[0069]: EEPROM control #1
8.4.3
[006a] EEPROM control #2
8.4.4
[006b-009f]: Reserved
Table 45: EEPROM data register bit description
Bit
Description
15-0
16-bit EEPROM data
Table 46: EEPROM control #1 register bit description
Bit
Description
15-13
Reserved.
12
Manual mode: EEPROM data input
11
Manual mode: EEPROM data output
10
Manual mode: EEPROM data output enable
9
Manual mode: EEPROM clock
8(w)
Auto mode: 1 = EEPROM write data cycle, 0 = read cycle
7-1(w)
Auto mode: EEPROM address bits 7-1 of the EEPROM address
Bit 0 is always 0 when accessing the EEPROM.
0(w)
Auto mode: 1 = START
Start auto mode a 16-bit EEPROM cycle sequencer.
Table 47: EEPROM control #2 register bit description
Bit
Description
15-5
Reserved.
4(r)
1 = EEPROM ERROR in the previous cycle
EEPROM acknowledge not received.
3(r)
EEPAUTO
1 = Power-up Auto load EEPROM initialization in progress.
2(r)
1 = Auto mode EEPROM cycle in progress status
1
Reserved.
0
1 = EEPROM in manual mode
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