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| 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)： | 63/93頁 |
| 文件大小： | 2118K |
| 代理商： | 935270538118 |
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Philips Semiconductors
ISP1160
Embedded USB Host Controller
Product data
Rev. 03 — 27 February 2003
66 of 89
9397 750 10765
Koninklijke Philips Electronics N.V. 2003. All rights reserved.
Code (Hex): AB — write
Remark: The maximum total RAM size is 1000H (4096 in decimal) bytes. That
means ITL0 (length) + ITL1 (length) + ATL (length)
≤ 1000H bytes. For example: If
ATL buffer length has been set to be 800H, then the maximum ITL buffer length can
only be set as 400H.
10.6.3
HcBufferStatus register (2CH—Read only)
Code (Hex): 2C — read
10.6.4
HcReadBackITL0Length register (2DH—Read only)
This register’s value stands for the current number of data bytes inside an ITL0 buffer
to be read back by the microprocessor. The HCD must set the HcTransferCounter
equivalent to this value before reading back the ITL0 buffer RAM.
Table 56:
HcBufferStatus register: bit allocation
Bit
15
14
13
12
11
10
9
8
Symbol
reserved
Reset
00000000
Access
RRRRRRRR
Bit
7
6
5
4
3
2
1
0
Symbol
reserved
ATLBuffer
Done
ITL1Buffer
Done
ITL0Buffer
Done
ATLBuffer
Full
ITL1Buffer
Full
ITL0Buffer
Full
Reset
00000000
Access
RRRRRRRR
Table 57:
HcBufferStatus register: bit description
Bit
Symbol
Description
15 to 6
-
reserved
5
ATLBuffer
Done
0 — ATL Buffer not read by HC yet
1 — ATL Buffer read by HC
4
ITL1Buffer
Done
0 — ITL1 Buffer not read by HC yet
1 — ITL1 Buffer read by HC
3
ITL0Buffer
Done
0 — 1TL0 Buffer not read by HC yet
1 — 1TL0 Buffer read by HC
2
ATLBuffer
Full
0 — ATL Buffer is empty
1 — ATL Buffer is full
1
ITL1Buffer
Full
0 — 1TL1 Buffer is empty
1 — 1TL1 Buffer is full
0
ITL0Buffer
Full
0 — ITL0 Buffer is empty
1 — ITL0 Buffer is full
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