CM120 C-Media Electronics, Inc., CM120 Datasheet - Page 15

• Manufacturer Part Number: CM120
• Description: Usb 7-in-1 Combo Card Reader Controller
• Manufacturer: C-Media Electronics, Inc.

Date: 09/09/2003
3.3 SD/MMC I/O SIGNALS
3.4 SM / xD I/O SIGNALS
3.5 MS I/O SIGNALS
XSMXD_DATA[7:0]
XSMXD_PWR_EN
XSMXD_DETEN
XSD_DATA[3:0]
XMS_PWR_EN
XSD_PWR_EN
Signal Name
Signal Name
XSMXD_ALE
XSMXD_CLE
XSMXD_CE1
XSMXD_LED
Signal Name
XSM_WPSW
XSMXD_WE
XSMXD_WP
XSMXD_RB
XSMXD_RE
XMS_DETN
XSD_DETN
XMS_DATA
XSD_WPN
XSD_CMD
XMS_CLK
XMS_LED
XSD_CLK
XSD_LED
XMS_BS
Type
Type
Type
I/O
I/O
I/O
I/O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
I
I
I
I
I
I
Table 3：SD/MMC Signal List
Table 4：SM Signal List
Table 5：MS Signal List
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USB 7-in-1 Combo Card Reader Controller
SM / xD command latch output
SM / xD write command output
SM / xD read command output
SD/MMC power enable output
SD/MMC command response
SM / xD power enable output
SM / xD address latch output
SM / xD write protect output
SD/MMC write protect input
SM / xD chip enable output
SD/MMC card detect input
SM / xD card detect input
MS power enable output
SM / xD read/busy input
SD/MMC clock output
SM write protect input
SD/MMC LED output
MS card detect input
SM / xD LED output
MS bus state output
SD/MMC data bus
SM / xD data bus
MS clock output
MS LED output
MS data bus
Description
Description
Description
Version: 1.3
CM120