Kontron KTLX800-pITX - Manual (Page 28)

KTD-S0022-C Page 23 Secure Digital I/O and Multimedia Card
KTLX800/pITX User's Guide
/O and Multimedia Card
nnector (11 pins) or
he signal line /CD (C
11 Secure Digital I
The SDIO/MMC interface comes with two controllers: one microSD card socket (only memory cards avail-
able) and one pin header for using a standard SDIO connector (9 pins), miniSD Card co
a second microSD Card connector (8 pins). Both controllers supports SDIO revision 2.0 (SDHC) and MMC
revision 4.2.
T
ard Detect, active low) of connector J1701 must be connected. The signal line /WP
(Write Protect, active low) is optional (default: write enabled).
11.1 microSD Card Connector
ro s named J1700 (8 pins). The mic SD card socket i
Header Pin Signal Name Function
DAT2 1 Data bit 2
2 CD / DAT3 Card detect / Data bit 3
3 CMD Command line
4 VCC 1) Power +3.3V
5 CLK Clock
1
GND 6 Ground
DAT0 7 Data bit 0
DAT1 8 Data bit 1
11.2 Pin Header
The second port is available through the connector J1701 (12 pins).
Header Pin Signal Name Function
VCC 1) 1 Power +3.3V
2 N.C. Not connected
3 DAT0 Data bit 0
4 N.C. Not connected
5 DAT1 / IRQ Data bit 1 / Interrupt
6 GND Ground
7
1 2
11 12
DAT2 / RW Data bit 2 / Read wait
8 /WP Write protect (optional)
CD / DAT3 9 Card detect / Data bit 3
/CD 10 Card detect
CMD 11 Command line
CLK 12 Clock