isp1160 NXP Semiconductors, isp1160 Datasheet - Page 53

• Manufacturer Part Number: isp1160
• Description: Isp1160 Embedded Universal Serial Bus Host Controller
• Manufacturer: NXP Semiconductors

Philips Semiconductors
Table 34:
9397 750 13963
Product data
Bit
Symbol
Reset
Access
Bit
Symbol
Reset
Access
Bit
Symbol
Reset
Access
Bit
Symbol
Reset
Access
HcRhPortStatus[1:2] register: bit allocation
R/W
R/W
R/W
R/W
31
23
15
0
0
0
7
0
10.3.4 HcRhPortStatus[1:2] (R/W [1]:15H/95H, [2]: 16H/96H)
The HcRhPortStatus[1:2] register is used to control and report port events on a
per-port basis. NumberDownstreamPorts represents the number of HcRhPortStatus
registers that are implemented in hardware. The lower word is used to reflect the port
status, whereas the upper word reflects the status change bits. Some status bits are
implemented with special write behavior. If a transaction (token through handshake)
is in progress when a write to change port status occurs, the resulting port status
change must be postponed until the transaction completes. Reserved bits should
always be written logic 0.
Code (Hex): [1]
Code (Hex): [1]
reserved
reserved
Table 35:
Bit
31 to 21
20
19
R/W
R/W
R/W
R/W
30
22
14
0
0
0
6
0
HcRshPortStatus[1:2] register: bit description
Symbol
-
PRSC
OCIC
R/W
R/W
R/W
R/W
29
21
13
0
0
0
5
0
Rev. 05 — 24 December 2004
15, [2]
95, [2]
reserved
Description
reserved
PortResetStatusChange: This bit is set at the end of the 10 ms
port reset signal. The HCD writes a logic 1 to clear this bit. Writing
a logic 0 has no effect.
0 — port reset is not complete
1 — port reset is complete
PortOverCurrentIndicatorChange: This bit is valid only if
overcurrent conditions are reported on a per-port basis. This bit is
set when Root Hub changes the PortOverCurrentIndicator bit. The
HCD writes a logic 1 to clear this bit. Writing a logic 0 has no
effect.
0 — no change in PortOverCurrentIndicator
1 — PortOverCurrentIndicator has changed
PRSC
PRS
R/W
R/W
R/W
R/W
16 — read
96 — write
28
20
12
0
0
0
4
0
reserved
OCIC
POCI
R/W
R/W
R/W
R/W
27
19
11
0
0
0
3
0
Embedded USB Host Controller
PSSC
PSS
R/W
R/W
R/W
R/W
26
18
10
0
0
0
2
0
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
PESC
LSDA
R/W
R/W
R/W
PES
R/W
25
17
0
0
9
0
1
0
ISP1160
CSC
CCS
PPS
R/W
R/W
R/W
R/W
24
16
0
0
8
0
0
0
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