- 您現在的位置：買賣IC網 > PDF目錄382297 > MC141555 (Motorola, Inc.) USB Hub Controller CMOS PDF資料下載
參數資料
| 型號： | MC141555 |
| 廠商： | Motorola, Inc. |
| 英文描述： | USB Hub Controller CMOS |
| 中文描述： | USB集線器控制器的CMOS |
| 文件頁數： | 7/16頁 |
| 文件大小： | 280K |
| 代理商： | MC141555 |
MC141555
7
MOTOROLA
SYSTEM DESCRIPTION
MC141555 is booted up from the Power-On Reset which
will initialize all the internal hardware circuitry and reset the
program counter of the internal processor. During Power-On
Reset, MC141555 must be set to the desired configuration
by the input states of the pins, OVR5/GANG, PWRSW5,
DP5/SEL1 and DM5/SEL0. See
Table1 Configuration
Selection
for detail.
After Power-On, the Hub Repeater will handle the con-
nectivity in per packet basis, and all downstream ports tran-
sition to the powered off state. After all initialization, the Hub
Controller takes over the responsibility for receiving Host’s
commands, Downstream Power Management and to report
status in per port basis while Repeater is detecting the con-
nectivity of each downstream port.
MC141555 accepts the Host Reset request to generate a
per port reset and receives reset signalling from root port to
complete its own reset sequence.
HUB CONFIGURATION
MC141555 can be configured as one of the three operating
modes: Self Power Mode with Individual Control, Bus Power
Mode with Individual Control and Bus Power Mode with
Ganged Control.
(a) Self-powered Mode with Individual Control
(Monitor Application)
During Power-On Reset, pull DP5/SEL1 and DM5/SEL0
low to select this mode. Meanwhile, MC141555 is configured
to be self powered with 5 downstream ports whose power
management is in Individual Control; that is, after Power-On
Reset, DP5/SEL1 acts as DP5, DM5/SEL0 acts as DM 5 and
OVR5/GANG acts as OVR5 .
(b) Bus-powered Mode with Individual Control
During Power-On Reset, pull DP5/SEL1 low, pull OVR5/
GANG and DM5/SEL0 high to select this mode. Meanwhile,
MC141555 is configured to be bus powered with 4 down-
stream ports whose power management is in Individual Con-
trol; that is, after Power-On Reset, DP5/SEL1, DM5/SEL0,
OVR5/GANG and PWRSW5 have no further usage.
(c) Bus-powered Mode with Ganged Control
During Power-On Reset, pull DP5/SEL1 and OVR5/
GANG low and pull DM5/SEL0 high to select this mode.
Meanwhile, MC141555 is configured to be bus-powered with
4 downstream ports whose power management is in
Ganged Control. In this mode, only PWRSW1 and OVR1 are
dedicated to power management for all 4 downstream ports.
All three operating modes with pin input states during
Power-On Reset are summarized in Table 1.
Table 1. Configuration Selection
DP5/
SEL1
SEL0
0
0
PWRSW5
X: don’t care
DM5/
PWRSW5 OVR5/
GANG
OVR5 Self Power & Individu-
al Control
1
Bus Power & Individu-
al Control
0
Bus Power & Ganged
Control
Configuration
0
1
X
0
1
X
F
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
.
相關PDF資料 |
PDF描述 |
|---|---|
| MC141555P1 | USB Hub Controller CMOS |
| MC14175B | Graphics System Processor 145-CPGA -55 to 125 |
| MC14175BCP | Graphics System Processor 145-CPGA -55 to 125 |
| MC14175BD | Graphics System Processor 132-CFP -55 to 125 |
| MC14175BDR2 | Graphics System Processor 132-CFP -55 to 125 |
相關代理商/技術參數 |
參數描述 |
|---|---|
| MC141555DW3 | 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Motorola Inc 功能描述: |
| MC141585DWE | 功能描述:IC LCD MONITOR OSD 16-SOIC RoHS:是 類別:集成電路 (IC) >> PMIC - 電源管理 - 專用 系列:- 應用說明:Ultrasound Imaging Systems Application Note 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:37 系列:- 應用:醫療用超聲波成像，聲納 電流 - 電源:- 電源電壓:2.37 V ~ 6 V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:56-WFQFN 裸露焊盤 供應商設備封裝:56-TQFN-EP（8x8） 包裝:管件 |
| MC141585DWER2 | 功能描述:IC LCD MONITOR OSD 16-SOIC RoHS:是 類別:集成電路 (IC) >> PMIC - 電源管理 - 專用 系列:- 應用說明:Ultrasound Imaging Systems Application Note 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:37 系列:- 應用:醫療用超聲波成像，聲納 電流 - 電源:- 電源電壓:2.37 V ~ 6 V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:56-WFQFN 裸露焊盤 供應商設備封裝:56-TQFN-EP（8x8） 包裝:管件 |
| MC14161BCPD | 制造商:Motorola Inc 功能描述: |
| MC14161BD | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
發布緊急采購，3分鐘左右您將得到回復。