ISP1161A1BM,557 NXP Semiconductors, ISP1161A1BM,557 Datasheet - Page 48
ISP1161A1BM,557
Manufacturer Part Number
ISP1161A1BM,557
Description
Manufacturer
NXP Semiconductors
Datasheet
1.ISP1161A1BM557.pdf
(137 pages)
Specifications of ISP1161A1BM,557
Operating Temperature (max)
85C
Operating Temperature (min)
-40C
Operating Temperature Classification
Industrial
Mounting
Surface Mount
Lead Free Status / RoHS Status
Compliant
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Philips Semiconductors
Table 12:
9397 750 13961
Product data
Bit
Symbol
Reset
Access
Bit
Symbol
Reset
Access
HcCommandStatus register: bit allocation
31
23
R
0
10.1.3 HcCommandStatus register (R/W: 02H/82H)
Table 11:
The HcCommandStatus register is used by the HC to receive commands issued by
the HCD, and it also reflects the HC’s current status. To the HCD, it appears to be a
‘write to set’ register. The HC must ensure that bits written as logic 1 become set in
the register while bits written as logic 0 remain unchanged in the register. The HCD
may issue multiple distinct commands to the HC without concern for corrupting
previously issued commands. The HCD has normal read access to all bits.
The SchedulingOverrunCount field indicates the number of frames with which the HC
has detected the scheduling overrun error. This occurs when the Periodic list does
not complete before EOF. When a scheduling overrun error is detected, the HC
increments the counter and sets the SchedulingOverrun field in the HcInterruptStatus
register.
Code (Hex): 02 — read
Code (Hex): 82 — write
Bit
8
7 to 6
5 to 0
30
22
R
0
HcControl register: bit description
Symbol
-
HCFS
-
29
21
R
0
Rev. 03 — 23 December 2004
reserved
Description
reserved
HostControllerFunctionalState for USB:
00B — USBReset
01B — USBResume
10B — USBOperational
11B — USBSuspend
A transition to USBOperational from another state causes
start-of-frame (SOF) generation to begin 1 ms later. The HCD
determines whether the HC has begun sending SOFs by reading
the StartofFrame field of HcInterruptStatus.
This field can be changed by the HC only when in the
USBSuspend state. The HC can move from the USBSuspend
state to the USBResume state after detecting the resume signaling
from a downstream port.
The HC enters USBReset after a software reset and a hardware
reset. The latter also resets the Root Hub and asserts subsequent
reset signaling to downstream ports.
reserved
28
20
R
0
reserved
00H
R
USB single-chip host and device controller
27
19
R
0
…continued
26
18
R
0
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
ISP1161A1
25
17
R
0
SOC[1:0]
47 of 136
24
16
R
0
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