參數(shù)資料
型號: ISP1161A1BM,557
廠商: NXP SEMICONDUCTORS
元件分類: 總線控制器
英文描述: 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): 87/137頁
文件大小: 599K
代理商: ISP1161A1BM,557
Philips Semiconductors
ISP1161A1
USB single-chip host and device controller
Product data
Rev. 03 — 23 December 2004
52 of 136
9397 750 13961
Koninklijke Philips Electronics N.V. 2004. All rights reserved.
10.2 HC frame counter registers
10.2.1
HcFmInterval register (R/W: 0DH/8DH)
The HcFmInterval register contains a 14-bit value which indicates the bit time interval
in a frame (that is, between two consecutive SOFs), and a 15-bit value indicating the
full-speed maximum packet size that the HC may transmit or receive without causing
a scheduling overrun. The HCD may carry out minor adjustments on the
FrameInterval by writing a new value at each SOF. This allows the HC to synchronize
with an external clock source and to adjust any unknown clock offset.
Code (Hex): 0D — read
Code (Hex): 8D — write
5
FNO
0 — ignore
1 — disable interrupt generation due to Frame Number Overow
4UE
0 — ignore
1 — disable interrupt generation due to Unrecoverable Error
3RD
0 — ignore
1 — disable interrupt generation due to Resume Detect
2SF
0 — ignore
1 — disable interrupt generation due to Start of Frame
1
-
reserved
0SO
0 — ignore
1 — disable interrupt generation due to Scheduling Overrun
Table 19:
HcInterruptDisable register: bit description…continued
Bit
Symbol
Description
Table 20:
HcFmInterval register: bit allocation
Bit
31
30
29
28
27
26
25
24
Symbol
FIT
FSMPS[14:8]
Reset
00000000
Access
R/W
Bit
23
22
21
20
19
18
17
16
Symbol
FSMPS[7:0]
Reset
00H
Access
R/W
Bit
15
14
13
12
11
10
9
8
Symbol
reserved
FI[13:8]
Reset
00101110
Access
R/W
Bit
7
6
5
4
3
2
1
0
Symbol
FI[7:0]
Reset
DFH
Access
R/W
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