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參數(shù)資料
| 型號： | 935270538118 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 總線控制器 |
| 英文描述： | UNIVERSAL SERIAL BUS CONTROLLER, PQFP64 |
| 封裝： | 10 X 10 MM, 1.40 MM HEIGHT, PLASTIC, MS-026, SOT-314-2, LQFP-64 |
| 文件頁數(shù)： | 62/93頁 |
| 文件大?。?/td> | 2118K |
| 代理商： | 935270538118 |
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Philips Semiconductors
ISP1160
Embedded USB Host Controller
Product data
Rev. 03 — 27 February 2003
65 of 89
9397 750 10765
Koninklijke Philips Electronics N.V. 2003. All rights reserved.
10.6 HC buffer RAM control registers
10.6.1
HcITLBufferLength register (2AH—Read, AAH—Write)
Write to this register to assign the ITL buffer size in bytes: ITL0 and ITL1 are assigned
the same value. For example, if HcITLBufferLength register is set to 2 kbytes, then
ITL0 and ITL1 would be allocated 2 kbytes each.
Must follow the formula:
ATL buffer length + 2
× (ITL buffer size) ≤ 1000H (that is, 4 kbytes)
where: ITL buffer size = ITL0 buffer length = ITL1 buffer length.
Code (Hex): 2A — read
Code (Hex): AA — write
10.6.2
HcATLBufferLength register (2BH—Read, ABH—Write)
Write to this register to assign ATL buffer size.
Code (Hex): 2B — read
Table 52:
HcITLBufferLength register: bit allocation
Bit
15
14
13
12
11
10
9
8
Symbol
ITLBufferLength[15:8]
Reset
00000000
Access
R/W
Bit
7
6
5
4
3
2
1
0
Symbol
ITLBufferLength[7:0]
Reset
00000000
Access
R/W
Table 53:
HcITLBufferLength register: bit description
Bit
Symbol
Description
15 to 0
ITLBufferLength[15:0]
Assign ITL buffer length
Table 54:
HcATLBufferLength register: bit allocation
Bit
15
14
13
12
11
10
9
8
Symbol
ATLBufferLength[15:8]
Reset
00000000
Access
R/W
Bit
7
6
5
4
3
2
1
0
Symbol
ATLBufferLength[7:0]
Reset
00000000
Access
R/W
Table 55:
HcATLBufferLength register: bit description
Bit
Symbol
Description
15 to 0
ATLBufferLength[15:0]
Assign ATL buffer length
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