GL826 USB 2.0 Multi-Slot Flash Card Reader Controller
SM_WEZ
SM_ALE
SM_CLE
SM_CEZ
SM_REZ
SM_RBZ
SM_CDZ
XD_CDZ
SD_WPZ
SD_CDZ
49
50
78
79
80
81
82
83
84
85
O, pu SM write enable
O, pd SM_ALE
O, pd SM command latch enable
O, pu SM card enable
O, pu SM read enable
I, pu SM read/busy
B, pu SM card detect
I, pu xD card detect
I, pd SD write protect
I, pu SD card detect
88, 89, 91, 93
94, 95, 86, 87
90
SD_D7~0
B, pd SD data line
SD_CLK
SD_CMD
MS_BS
O, pd SD clock
92
B, pd SD command/response
O, pd MS/MSP bus state
I, pu MS insertion detect
109
113
MS_INS
MS_D3~0, 4~7 114, 112, 110, 111, 33~36 B, pd MS/MSP data signal
MS_CLK
5V
115
97, 104
99
O, pd MS clock
P
P
P
P
P
P
A
I
5V power input
PMOSOZ_ MS
PMOSOA_SM
PMOSOB_SD
PMOSOC_SD
PMOSOD_CF
IREF
MS power 250mA
SM power 100mA
100
101
SD power 200mA
102
103
CF power 500mA
Regulator reference voltage
XTAL 1
105
X1
106
X2
107
B
XTAL 2
EXTRSTZ
Notation:
122
I, pu System reset
Type
O
I
Output
Input
B
Bi-directional
pu
pd
P
internal pull-up when input
internal pull-down when input
Power / Ground
A
Analog
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