MAX14500 Datasheet, PDF (19/41 Pages) Maxim Integrated Products – Hi-Speed USB-to-SD Card Readers with Bypass

Hi-Speed USB-to-SD Card
Readers with Bypass
Table 1. Power-Up Default Mini Register Map for Configuration Registers
REGISTER NAME
Control Register
(CONTROL)
Configuration
Register 1
(CONFIG1)
REGISTER
ADDRESS
(hex)
0x00
0x01
POWER-UP VALUE
(hex)
POWER-UP DEFAULT SETTINGS
0x18
0x00
SD2SW = 1, SD switch 2 is closed
SD1SW = 1, SD switch 1 is closed
MODE[1:0] = 00, Card Reader mode is not active
WAKEUP = 0, shutdown
SD2ONEBIT = 0, SD2 bus in 4-bit data mode
SD1ONEBIT = 0, SD1 bus in 4-bit data mode
INTPULSE = 0, INT stays asserted until status register is read
INTACTHI = 0, INT asserts active low
Configuration
Register 2
(CONFIG2)
0x02
0x00
CLKSOURCE = 00000, default clock input
FORCEFS = 0, USB Hi-Speed
Configuration
Register 3
(CONFIG3)
Interrupt Enable
Register 1
(IE1)
Interrupt Enable
Register 2
(IE2)
0x03
0x04
0x05
0x00
0x00
0x00
SD2MAXCLK = 0000, default clock (base SD clock)
SD1MAXCLK = 0000, default clock (base SD clock)
USBFS = 0, disable INT for full-speed status change
USBSR = 0, disable INT for suspend/resume status change
VTM = 0, disable INT for V_TM status change
VSD = 0, disable INT for V_SD status change
KVBUS = 0, disable INT for VBUS status change
BSY = 0, disable INT for BUSY status change
SDSTAT = 0, disable INT for SD card status change
FWUPD = 0, disable INT for firmware update status change
USB Vendor ID
High Byte
(USBVIDH)
0x06
0x00
If VID = 0x0000, 0x06BA is used during USB enumeration,
VID high byte = 0x06
USB Vendor ID
Low Byte
(USBVIDL)
0x07
0x00
If VID = 0x0000, 0x06BA is used during USB enumeration,
VID low byte = 0xBA
USB Product ID
High Byte
(USBPIDH)
0x08
0x00
If PID = 0x0000, 0x38A4 is used during USB enumeration,
PID high byte = 0x38
USB Product ID
Low Byte
(USBPIDL)
0x09
0x00
If PID = 0x0000, 0x38A4 is used during USB enumeration.
PID low byte = 0xA4
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