參數(shù)資料
型號(hào): ISP1561BM,557
廠商: ST-ERICSSON
元件分類: 總線控制器
英文描述: UNIVERSAL SERIAL BUS CONTROLLER, PQFP128
封裝: 14 X 14 MM, 1.40 MM HEIGHT, PLASTIC, MS-026, SOT-420-1, LQFP-128
文件頁數(shù): 33/103頁
文件大?。?/td> 457K
代理商: ISP1561BM,557
ISP1561_2
NXP B.V. 2007. All rights reserved.
Product data sheet
Rev. 02 — 5 March 2007
35 of 103
NXP Semiconductors
ISP1561
HS USB PCI Host Controller
For the OHCI Host Controller, these registers are divided into two types: one set of
operational registers for the USB operation and one set of legacy support registers for the
legacy keyboard and mouse operation.
For the enhanced Host Controller, there are two types of registers: one set of read-only
capability registers and one set of read/write operational registers.
11.1 OHCI USB Host Controller operational registers
OHCI HCDs must communicate with these registers to implement USB data transfers.
Based on their functions, these registers are classied into four partitions:
Control and status
Memory pointer
Frame counter
Root hub
11.1.1 HcRevision register (address: content of the base address register + 00h)
[1]
X is 1 for OHCI1 (2P) and OHCI1 (1P); X is 0 for OHCI2 (2P) and OHCI2 (1P).
Table 43.
HcRevision register: bit allocation
Bit
31
30
29
28
27
26
25
24
Symbol
reserved
Reset
00000000
Access
--------
Bit
23
22
21
20
19
18
17
16
Symbol
reserved
Reset
00000000
Access
--------
Bit
15
14
13
12
11
10
9
8
Symbol
reserved
L
Reset
0000000
Access
-------
R
Bit
7
6
5
4
3
2
1
0
Symbol
REV[7:0]
Reset
00010000
Access
RRRRRRRR
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