参数资料
型号: USB2241-AEZG-XX
厂商: STANDARD MICROSYSTEMS CORP
元件分类: 存储控制器/管理单元
中文描述: FLASH MEMORY DRIVE CONTROLLER, QCC36
封装: 6 X 6 MM, 0.50 MM PITCH, ROHS COMPLIANT, QFN-36
文件页数: 26/51页
文件大小: 881K
代理商: USB2241-AEZG-XX
Ultra Fast USB 2.0 Multi-Format, SD/MMC, and MS Flash Media Controllers
Datasheet
Revision 2.0 (10-14-09)
32
SMSC USB224x
DATASHEET
7.2.4
A0h-A7h: Device Power Configuration
The USB224x has one internal FET which can be utilized for card power. This section describes the
default internal configuration. The settings are stored in NVSTORE and provide the following features:
1. A card can be powered by an external FET or by an internal FET.
2. The power limit can be set to 100 mA or 200 mA (Default) for the internal FET.
Each media uses two bytes to store its device power configuration. Bit 3 selects between internal or
external card power FET options. For internal FET card power control, bits 0 through 2 are used to
set the power limit. The “Device Power Configuration” bits are ignored unless the “Enable Device
7.2.4.1
A0h-A1h: Memory Stick Device Power Configuration
7.2.4.2
A2h-A3h: Not Applicable
7.2.4.3
A4h-A5h: xD-Picture Card Device Power Configuration
When applicable, the "SM" value will be overridden with “xD” once an xD-Picture Card has been
identified.
FET
TYPE
BITS
BIT TYPE
DESCRIPTION
0
FET Lo Byte
MS_PWR_LB
3:0
Low Nibble
0000b Disabled
1
7:4
High Nibble
2
FET Hi Byte
MS_PWR_HB
3:0
Low Nibble
0000b Disabled
0001b External FET enabled
1000b Internal FET with 100 mA power limit
1010b Internal FET with 200 mA power limit
3
7:4
High Nibble
0000b Disabled
BYTE
NAME
DESCRIPTION
1:0
Not Applicable
Not applicable.
FET
TYPE
BITS
BIT TYPE
DESCRIPTION
0
FET Lo Byte
xD_PWR_LB
3:0
Low Nibble
0000b Disabled
1
7:4
High Nibble
2
FET Hi Byte
xD_PWR_HB
3:0
Low Nibble
0000b Disabled
0001b External FET enabled
1000b Internal FET with 100 mA power limit
1010b Internal FET with 200 mA power limit
3
7:4
High Nibble
0000b Disabled
相关PDF资料
PDF描述
USB2242-AEZG-XX
USB2602-NU-04
USB2601-NU-04
USB3315-CP-TR
USB3329C-GL-TR
相关代理商/技术参数
参数描述
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USB2241I-AEZG-06 功能描述:USB 接口集成电路 Ultra Fast USB 2.0 Flash Media RoHS:否 制造商:Cypress Semiconductor 产品:USB 2.0 数据速率: 接口类型:SPI 工作电源电压:3.15 V to 3.45 V 工作电源电流: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:WLCSP-20
USB2242-AEZG-04 功能描述:USB 接口集成电路 Ultra Fast USB 2.6 Flash Media RoHS:否 制造商:Cypress Semiconductor 产品:USB 2.0 数据速率: 接口类型:SPI 工作电源电压:3.15 V to 3.45 V 工作电源电流: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:WLCSP-20
USB2242-AEZG-05 功能描述:USB 接口集成电路 Ultra Fast USB 2.7 Flash Media RoHS:否 制造商:Cypress Semiconductor 产品:USB 2.0 数据速率: 接口类型:SPI 工作电源电压:3.15 V to 3.45 V 工作电源电流: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:WLCSP-20
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