Board Components
19
HSMC Connector
LF_DAT2
LF_DAT3
LF_CMD
LF_CLK
LF_DAT0
LF_DAT1
LF_WPn
DAT2
DAT3
CMD
CLK
DAT0
DAT1
WPn
9
1
2
5
7
8
11
Level
Shift
(U9)
SD_DAT2
SD_DAT3
SD_CMD
SD_CLK
SD_DAT0
SD_DAT1
SD_WPn
SD Card Socket
Figure 3.12 The block diagram of the SD Card socket and HSMC connector
Table 3.10 The pin assignments of the
SD Card Socket J7
SD Card Socket
Pin Number
SD Card Socket
Signal Name
HSMC Pin
Number
HSMC Signal Name
HSMC Pin Name
1
LF_DAT3
42
SD_DAT3
HSMC_D1
2
LF_CMD
47
SD_CMD
HSMC_TX_P0
5
LF_CLK
43
SD_CLK
HSMC_D2
7
LF_DAT0
41
SD_DAT0
HSMC_D0
8
LF_DAT1
39
SD_DAT1
HSMC_CLKOUT0
9
LF_DAT2
44
SD_DAT2
HSMC_D3
11
LF_WPn
40
SD_WP_N
HSMC_CLKIN0
3.6
SMA Connector
This section describes the SMA connector on the THDB-SUM board
The THDB-SUM board provides a SMA connector (J6) for external clock input. The pin assignments of the
SMA connector are shown in
Table 3.11
.
Table 3.11 The pin assignments of the SMA Connector J6
SD Card Socket
Pin Number
SD Card Socket
Signal Name
HSMC Pin
Number
HSMC Signal Name
HSMC Pin Name
1
EXT_CLK
96
EXT_CLK
HSMC_CLKIN_P1