LC786960E
SD Memory Card Interface
SD Memory Card Input/Output Timing specification
tSDCKL tSDCKH
1/fSDCKF
SDCCLK
(Output)
SDCMDIO
(Inout)
tSDCMS
tSDCMH
tSDCMO
tSDCDO
SDCDAT[3:0]
(Inout)
tSDCDS
tSDCDH
* Relationship between signal name and pin name
SDCCLK
SDCDAT [2] : GP37
: GP34
SDCMDIO
SDCDAT [1] : GP32
: GP35
SDCDAT [3] : GP36
SDCDAT [0] : GP33
Parameter
Symbol
Pin names
min
typ
max
unit
MHz
ns
SDCCLK clock frequency
fSDCKF
tSDCKH
tSDCKL
tSDCMS
tSDCMH
tSDCMO
tSDCDS
tSDCDH
tSDCDO
SDCCLK
SDCCLK
SDCCLK
6.0
SDCCLK clock "H" level width
SDCCLK clock "L" level width
Setup time for command input
Hold time for command input
Command output valid time
Setup time for data input
Hold time for data input
83.3
83.3
ns
SDCMDIO, SDCCLK
SDCMDIO, SDCCLK
SDCMDIO, SDCCLK
30.0
30.0
ns
ns
30.0
ns
SDCDAT [3:0], SDCCLK
SDCDAT [3:0], SDCCLK
SDCDAT [3:0], SDCCLK
30.0
30.0
ns
ns
Data output valid time
30.0
ns
Note: Internal CPU (ARM7) must be set to normal mode. Never use the SD Memory Card interface at the internal
CPU’s Low speed mode.
No.A2080-16/24
SANYO [ SANYO SEMICON DEVICE ]
