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: 42/88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
47 of 88
9397 750 13963
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
Bit
7
6
5
4
3
2
1
0
Symbol
FN[7:0]
Reset
00000000
Access
RRRRRRRR
Table 25:
HcFmNumber register: bit description
Bit
Symbol
Description
31 to 16
reserved
15 to 0
FN[15:0]
FrameNumber: This is incremented when HcFmRemaining is
reloaded. It rolls over to 0000H after FFFFH. When the
USBOperational state is entered, this will be incremented
automatically. The HC will set bit StartofFrame in the
HcInterruptStatus register.
Table 26:
HcLSThreshold register: bit allocation
Bit
31
30
29
28
27
26
25
24
Symbol
reserved
Reset
00000000
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
LST[10:8]
Reset
00000110
Access
R/W
Bit
7
6
5
4
3
2
1
0
Symbol
LST[7:0]
Reset
00101000
Access
R/W
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