參數(shù)資料
型號: ISP1561
廠商: NXP Semiconductors N.V.
英文描述: ISP1561BM
中文描述: ISP1561BM
文件頁數(shù): 53/102頁
文件大?。?/td> 2875K
代理商: ISP1561
Philips Semiconductors
ISP1561
USB PCI host controller
Product data
Rev. 01 — 06 February 2003
53 of 102
9397 750 10015
Koninklijke Philips Electronics N.V. 2003. All rights reserved.
11.1.15
HcFmRemaining register (address: value read from func0 or func1 of address
10H
+
38H)
The HcFmRemaining register is a 14-bit down counter showing the bit time remaining
in the current Frame.
Table 70
contains the bit allocation of this four-byte register.
Table 69:
Bit
31
HcFmInterval register: bit description
Symbol
Description
FIT
FrameIntervalToggle
: The HCD toggles this bit whenever it
loads a new value to FrameInterval.
FSMPS[14:0]
FSLargestDataPacket
: This field specifies a value that is
loaded into the Largest Data Packet Counter at the beginning of
each frame. The counter value represents the largest amount of
data in bits that can be sent or received by the Host Controller
in a single transaction at any given time without causing a
scheduling overrun. The field value is calculated by the HCD.
-
reserved
FI[13:0]
FrameInterval:
This specifies the interval between two
consecutive SOFs in bit times. The nominal value is set to
11,999. The HCD should store the current value of this field
before resetting the Host Controller because this causes the
field to be reset the nominal value. The HCD can then restore
the stored value upon the completion of the reset sequence.
30 to 16
15 to 14
13 to 0
Table 70:
Bit
Symbol
Reset
Access
Bit
Symbol
Reset
Access
Bit
Symbol
Reset
Access
Bit
Symbol
Reset
Access
HcFmRemaining register: bit allocation
31
FRT
0
R/W
23
30
29
28
27
26
25
24
reserved
0
-
19
0
-
0
-
0
-
0
-
0
-
0
-
22
21
20
18
17
16
reserved
0
-
0
-
0
-
0
-
0
-
0
-
0
-
9
0
-
8
15
14
13
12
11
10
reserved
FR[13:8]
0
-
7
0
-
6
0
0
0
0
0
0
R/W
5
R/W
4
R/W
3
R/W
2
R/W
1
R/W
0
FR[7:0]
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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ISP1561BM,551 功能描述:USB 接口集成電路 USB 2.0 HOST CONTROLLER RoHS:否 制造商:Cypress Semiconductor 產(chǎn)品:USB 2.0 數(shù)據(jù)速率: 接口類型:SPI 工作電源電壓:3.15 V to 3.45 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:WLCSP-20
ISP1561BM,557 功能描述:USB 接口集成電路 DO NOT USE ORDER -S OR -T PART RoHS:否 制造商:Cypress Semiconductor 產(chǎn)品:USB 2.0 數(shù)據(jù)速率: 接口類型:SPI 工作電源電壓:3.15 V to 3.45 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:WLCSP-20