GL826 USB 2.0 Multi-Slot Flash Card Reader Controller
CF_RST
65
66
O, pu CF reset
CF_IORDY
CF_DMARQ
CF_DMACK
CF_A2~0
SM_WPDZ
SM_D7~0
SM_WPZ
SM_WEZ
SM_ALE
SM_CLE
SM_CEZ
SM_REZ
SM_RBZ
SM_CDZ
XD_CDZ
SD_WPZ
SD_CDZ
I, pu CF IO ready
I, pd CF DMA request
67
68
O
O
CF DMA acknowledge
CF address
69~71
39
I, pu SM WP#
40~47
48
B, pd SM data ports
B, pu SM write protect
O, pu SM write enable
O, pd SM_ALE
49
50
78
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, pu SD write protect
I, pu SD card detect
79
80
81
82
83
84
85
88, 89, 91, 93
94, 95, 86, 87
90
SD_D7~0
B, pd SD data line
O, pd SD clock
SD_CLK
SD_CMD
MS_BS
92
B
SD command/response
109
O, pd MS/MSP bus state
I, pu MS insertion detect
B, pd MS/MSP data signal
O, pd MS clock
MS_INS
113
MS_D3~0
MS_CLK
5V
114, 112, 110, 111
115
97, 104
99
P
P
P
P
P
P
A
I
5V power input
SD power 250mA
SM power 100mA
MS power 100mA
mSD power 100mA
CF power 500mA
Regulator reference voltage
XTAL 1
PMOSOZ_ SD
PMOSOA_SM
PMOSOB_MS
PMOSOC_mSD
PMOSOD_CF
IREF
100
101
102
103
105
X1
106
X2
107
B
XTAL 2
EXTRSTZ
Notation:
122
I, pu System reset
Type
O
I
Output
Input
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