MAX14500 Datasheet, PDF (36/41 Pages) Maxim Integrated Products – Hi-Speed USB-to-SD Card Readers with Bypass

Hi-Speed USB-to-SD Card
Readers with Bypass
Register Map (continued)
FIELD NAME
READ
WRITE
BITS
Test Register (0x0E)
Test Register
R/W
—
FWP: Firmware Portal (0x0F)
Firmware Portal
R/W
[7:0]
IRQ1: Interrupt Request Register 1 (0x10)
RFU
R
7
USBFS
R
6
USBSR
R
5
VTM
R
4
VSD
R
3
VBUS
R
2
BSY
R
1
SDSTAT
R
0
IRQ2: Interrupt Request Register 2 (0x11)
Firmware Update
R
7
RFU
R
STATUS1: Status Register 1 (0x12)
RFU
R
[6:0]
7
USBFS
R
6
USBSR
R
5
VTM
R
4
VSD
R
3
VBUS
R
2
BSY
R
1
RESET
DESCRIPTION
0x00 Do not write to this register
0x00 Contact factory. Do not write to this register.
Reserved for future use
0 = no change in USB full-speed mode status
1 = change in USB full-speed mode status
0 = no change in USB suspend/resume status
1 = change in USB suspend/resume status
0 = no change in V_TM detector status
1 = change in V_TM detector status
0 = no change in V_SD detector status
1 = change in V_SD detector status
0 = no change in VBUS detector status
1 = change in VBUS detector status
0 = no change in BUSY status
1 = change in BUSY status
0 = no change in SD card present status
1 = change in SD card present status
Contact factory
Reserved for future use
Reserved for future use
0 = no connection or Hi-Speed connection
1 = full-speed connection
0 = USB resume
1 = USB suspend
0 = no voltage
1 = V_TM supply present
0 = no voltage
1 = V_SD supply present
0 = no voltage
1 = VBUS supply present
0 = not busy
1 = busy
VALID
WHEN
—
—
—
Enter Card
Reader mode
Enter Card
Reader mode
WAKEUP = 1
WAKEUP = 1
WAKEUP = 1
WAKEUP = 1
Enter Card
Reader mode
Code
download
—
—
Enter Card
Reader mode
Enter Card
Reader mode
WAKEUP = 1
WAKEUP = 1
WAKEUP = 1
WAKEUP = 1
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