參數(shù)資料
型號: ISP1161A1BD
廠商: NXP SEMICONDUCTORS
元件分類: 總線控制器
英文描述: Universal Serial Bus single-chip host and device controller
中文描述: UNIVERSAL SERIAL BUS CONTROLLER, PQFP64
封裝: 10 X 10 MM, 1.40 MM HEIGHT, PLASTIC, MS-026, SOT-314-2, LQFP-64
文件頁數(shù): 100/127頁
文件大?。?/td> 2762K
代理商: ISP1161A1BD
Philips Semiconductors
ISP1161
Full-speed USB single-chip host and device controller
Product data
Rev. 01 — 3 July 2001
100 of 130
9397 750 08313
Philips Electronics N.V. 2001. All rights reserved.
Transaction —
read 1 word
14.3.2
Unlock Device
This command unlocks ISP1161’s DC from write-protection mode after a ‘resume’. In
‘suspend’ state all registers and FIFOs are write-protected to prevent data corruption
by external devices during a ‘resume’. Register access for reading is not blocked.
Table 95: Error Code Register: bit allocation
Bit
7
Symbol
UNREAD
Reset
0
Access
R
6
5
4
3
2
1
0
DATA01
0
R
reserved
0
R
ERROR[3:0]
RTOK
0
R
0
R
0
R
0
R
0
R
Table 96: Error Code Register: bit description
Bit
Symbol
7
UNREAD
Description
A logic 1 indicates that a new event occurred before the
previous status was read.
This bit indicates the PID type of the last successfully received
or transmitted packet (0 = DATA0 PID, 1 = DATA1 PID).
reserved
Error code. For error description, see
Table 97
.
A logic 1 indicates that data was received or transmitted
successfully.
6
DATA01
5
4 to 1
0
-
ERROR[3:0]
RTOK
Table 97: Transaction error codes
Error code
(Binary)
0000
no error
0001
PID encoding error; bits 7 to 4 are not the inverse of bits 3 to 0
0010
PID unknown; encoding is valid, but PID does not exist
0011
unexpected packet; packet is not of the expected type (token, data, or
acknowledge), or is a SETUP token to a non-control endpoint
0100
token CRC error
0101
data CRC error
0110
time-out error
0111
babble error
1000
unexpected end-of-packet
1001
sent or received NAK (Not AcKnowledge)
1010
sent Stall; a token was received, but the endpoint was stalled
1011
overflow; the received packet was larger than the available buffer space
1100
sent empty packet (ISO only)
1101
bit stuffing error
1110
sync error
1111
wrong (unexpected) toggle bit in DATA PID; data was ignored
Description
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