參數(shù)資料
型號(hào): ISP1161ABM
廠商: NXP SEMICONDUCTORS
元件分類: 總線控制器
英文描述: Full-speed Universal Serial Bus single-chip host and device controller
中文描述: UNIVERSAL SERIAL BUS CONTROLLER, PQFP64
封裝: 7 X 7 MM, 1.40 MM HEIGHT, PLASTIC, MS-026, SOT-414-1, LQFP-64
文件頁數(shù): 56/134頁
文件大?。?/td> 587K
代理商: ISP1161ABM
Philips Semiconductors
ISP1161A
Full-speed USB single-chip host and device controller
Product data
Rev. 03 — 23 December 2004
56 of 134
9397 750 13962
Koninklijke Philips Electronics N.V. 2004. All rights reserved.
10.3.1
HcRhDescriptorA register (R/W: 12H/92H)
The HcRhDescriptorA register is the first register of two describing the characteristics
of the Root Hub. Reset values are Implementation-Specific (IS). The descriptor length
(11), descriptor type and hub controller current (0) fields of the hub Class Descriptor
are emulated by the HCD. All other fields are located in the registers
HcRhDescriptorA and HcRhDescriptorB.
Remark:
IS denotes an implementation-specific reset value for that field.
Code (Hex): 12 —
read
Code (Hex): 92 —
write
Table 28:
Bit
Symbol
Reset
Access
Bit
Symbol
Reset
Access
Bit
Symbol
Reset
Access
Bit
Symbol
Reset
Access
HcRhDescriptorA register: bit description
31
30
29
28
27
26
25
24
POTPGT[7:0]
IS
R/W
20
reserved
0
R/W
12
NOCP
IS
R/W
4
reserved
0
R
IS
IS
IS
IS
IS
IS
IS
R/W
23
R/W
22
R/W
21
R/W
19
R/W
18
R/W
17
R/W
16
0
0
0
0
0
0
0
R/W
15
R/W
14
R/W
13
R/W
11
OCPM
IS
R/W
3
R/W
10
DT
0
R
2
R/W
9
NPS
IS
R/W
1
R/W
8
PSM
IS
R/W
0
reserved
0
R
6
0
R
7
0
R
5
NDP[1:0]
0
R
0
R
0
R
0
R
0
R
IS
R
IS
R
Table 29:
Bit
31 to 24
HcRhDescriptorA register: bit description
Symbol
Description
POTPGT
[7:0]
HCD has to wait before accessing a powered-on port of the Root
Hub. The unit of time is 2 ms. The duration is calculated as
POTPGT
×
2 ms.
-
reserved
PowerOnToPowerGoodTime:
This byte specifies the duration
23 to 13
相關(guān)PDF資料
PDF描述
ISP1161 Full-speed Universal Serial Bus single-chip host and device controller
ISP1161A1 Universal Serial Bus single-chip host and device controller
ISP1161A1BD Universal Serial Bus single-chip host and device controller
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ISP1161BD Full-speed Universal Serial Bus single-chip host and device controller
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