參數(shù)資料
型號: 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): 54/134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
54 of 134
9397 750 13962
Koninklijke Philips Electronics N.V. 2004. All rights reserved.
10.2.4
HcLSThreshold register (R/W: 11H/91H)
The HcLSThreshold register contains an 11-bit value used by the HC to determine
whether to commit to the transfer of a maximum of 8-byte LS packet before EOF.
Neither the HC nor the HCD is allowed to change this value.
Code (Hex): 11 —
read
Code (Hex): 91 —
write
Table 24:
Bit
Symbol
Reset
Access
Bit
Symbol
Reset
Access
Bit
Symbol
Reset
Access
Bit
Symbol
Reset
Access
HCFmNumber register: bit allocation
31
30
29
28
27
26
25
24
reserved
0
R
23
0
R
22
0
R
21
0
R
20
0
R
19
0
R
18
0
R
17
0
R
16
reserved
0
R
15
0
R
14
0
R
13
0
R
12
0
R
11
0
R
10
0
R
9
0
R
8
FN[15:8]
0
R
7
0
R
6
0
R
5
0
R
4
0
R
3
0
R
2
0
R
1
0
R
0
FN[7:0]
0
R
0
R
0
R
0
R
0
R
0
R
0
R
0
R
Table 25:
Bit
31 to 16
15 to 0
HcFmNumber register: bit description
Symbol
Description
reserved
FN[15:0]
FrameNumber:
This field is incremented when HcFmRemaining
is reloaded. It rolls over to 0000H after FFFFH. When the
USBOperational state is entered, this field will be incremented
automatically. HC will set the StartofFrame bit in the
HcInterruptStatus register.
Table 26:
Bit
Symbol
Reset
Access
Bit
Symbol
Reset
Access
HcLSThreshold register: bit allocation
31
30
29
28
27
26
25
24
reserved
0
0
0
0
0
0
0
0
R/W
23
R/W
22
R/W
21
R/W
20
R/W
19
R/W
18
R/W
17
R/W
16
reserved
0
0
0
0
0
0
0
0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
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ISP1161 Full-speed Universal Serial Bus single-chip host and device controller
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