参数资料
型号: ISP1160BD/01,118
厂商: ST-ERICSSON
元件分类: 总线控制器
英文描述: UNIVERSAL SERIAL BUS CONTROLLER, PQFP64
封装: 10 X 10 MM, 1.40 MM HEIGHT, PLASTIC, MS-026, SOT-314-2, LQFP-64
文件页数: 44/88页
文件大小: 394K
代理商: ISP1160BD/01,118
Philips Semiconductors
ISP1160
Embedded USB Host Controller
Product data
Rev. 05 — 24 December 2004
49 of 88
9397 750 13963
Koninklijke Philips Electronics N.V. 2004. All rights reserved.
Table 28:
HcRhDescriptorA register: bit description
Bit
31
30
29
28
27
26
25
24
Symbol
POTPGT[7:0]
Reset
IS
Access
R/W
Bit
23
22
21
20
19
18
17
16
Symbol
reserved
Reset
00000000
Access
R/W
Bit
15
14
13
12
11
10
9
8
Symbol
reserved
NOCP
OCPM
DT
NPS
PSM
Reset
0
IS
0
IS
Access
R
R/W
R
R/W
Bit
7
6
5
4
3
2
1
0
Symbol
reserved
NDP[1:0]
Reset
000000
IS
Access
RRRRRRRR
Table 29:
HcRhDescriptorA register: bit description
Bit
Symbol
Description
31 to 24
POTPGT
[7:0]
PowerOnToPowerGoodTime: This byte species the duration
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
× 2ms.
23 to 13
-
reserved
12
NOCP
NoOverCurrentProtection: This bit describes how the
overcurrent status for the Root Hub ports are reported. When this
bit is cleared, the OverCurrentProtectionMode eld species
global or per-port reporting.
0 — overcurrent status is reported collectively for all downstream
ports
1 — no overcurrent reporting supported
11
OCPM
OverCurrentProtectionMode: This bit describes how the
overcurrent status for the Root Hub ports is reported. At reset, this
eld reects the same mode as PowerSwitchingMode. This eld is
valid only if the NoOverCurrentProtection eld is cleared.
0 — overcurrent status is reported collectively for all downstream
ports
1 — overcurrent status is reported on a per-port basis. On
power-up, clear this bit and then set it to logic 1.
10
DT
DeviceType: This bit species that the Root Hub is not a
compound device—it is not permitted. This eld should always
read/write 0.
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