参数资料
型号: MAX14502AETL+T
厂商: Maxim Integrated Products
文件页数: 28/41页
文件大小: 0K
描述: IC CARD READER USB-SD 40-TQFN
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
应用: USB
接口: I²C,2 线串口
电源电压: 1.8 V ~ 3.3 V
封装/外壳: 40-WFQFN 裸露焊盘
供应商设备封装: 40-TQFN-EP(5x5)
包装: 带卷 (TR)
安装类型: 表面贴装
MAX14500–MAX14503
Hi-Speed USB-to-SD Card
Readers with Bypass
34
______________________________________________________________________________________
Register Map (continued)
FIELD NAME
READ
WRITE
BITS
RESET
DESCRIPTION
VALID
WHEN
FORCEFS
R/W
1
0
Sets the maximum USB speed:
0 = Hi-Speed
1 = full speed
Enter Card
Reader mode
RFU
R/W
0
Reserved for future use
CONFIG3: Configuration Register 3 (0x03)
SD2MAXCLK
R/W
[7:4]
0000
Limits the max clock for SD card 2. The SD clock will
be the minimum of either this register or the SD card
max speed register.
0111 = base SD clock/64
0110 = base SD clock/32
0101 = base SD clock/16
0100 = base SD clock/8
0011 = base SD clock/4
0010 = base SD clock/2
0001 = base SD clock
0000 = default (base SD clock)
Enter Card
Reader mode
SD1MAXCLK
R/W
[3:0]
0000
Limits the max clock for SD card 1. The SD clock will
be the minimum of either this register or the SD card
max speed register.
0111 = base SD clock/64
0110 = base SD clock/32
0101 = base SD clock/16
0100 = base SD clock/8
0011 = base SD clock/4
0010 = base SD clock/2
0001 = base SD clock
0000 = default (base SD clock)
Enter Card
Reader mode
IE1: Interrupt Enable Register 1 (0x04)
RFU
R/W
7
0
Reserved for future use
USBFS
R/W
6
0
Full-speed status change:
0 = disable contribution to INT
1 = enable contribution to INT
Powered
USBSR
R/W
5
0
USB suspend-resume status change:
0 = disable contribution to INT
1 = enable contribution to INT
Powered
VTM
R/W
4
0
VTM voltage-detector change:
0 = disable contribution to INT
1 = enable contribution to INT
Powered
VSD
R/W
3
0
VSD voltage-detector change:
0 = disable contribution to INT
1 = enable contribution to INT
Powered
KVBUS
R/W
2
0
VBUS voltage-detector change:
0 = disable contribution to INT
1 = enable contribution to INT
Powered
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