GL826 USB 2.0 Multi-Slot Flash Card Reader Controller
2.1.3 Pin Description
Table 2.2－Pin Description
Pin Name
AVDD1
RREF
Pin #
Type Description
1
P
A
P
Analog power
USB Reference resistor
Analog ground
USB D-
2
AGND1
DM
3
4
A
A
P
DP
5
USB D+
AVDD3
AGND3
VDD33
DGND
6
7
Analog power
Analog ground
PAD power 3.3V
P
37, 98
38, 96, 108
P
P
Digital Ground
8: Common Access LED
33: SM/xD LED
GPIO
8, 33~36
B
34: SD/MMC LED
35: MS/MSP LED
36: CF/MD LED
TSTMOD
MCSZ
24
11
9
I, pd Test mode
O, pu External flash chip select
O, pu External flash output enable
O, pu External flash write enable
MOEZ
MWEZ
123
121~125, 120, 128, 10,
127, 126, 119~116, 23~20
118
MA15~0
O
O
External flash address ports
Serial EEPROM clock
MA6
MA7
119
B, pu Serial EEPROM data
B, pd External flash data ports
B, pd SD2 data ports
MD7~0
12~19
mSD _D3~0
mSD _CLK
mSD _CMD
mSD _CDZ
CF_CDZ
30, 31, 26, 27
28
29
32
O, pd SD2 clock
B, pd SD2 command port
I, pu SD2 card detect
I, pu CF card detect
25
60, 58, 56, 54,
52, 77, 76, 74,
59, 57, 55, 53,
51, 75, 73, 72
CF_D15~0
B
CF data ports
CF_CS0Z
CF_CS1Z
CF_IORZ
CF_IOWZ
61
62
63
64
O, pu CF chip select 0
O, pu CF chip select 1
O, pu CF IO read
O, pu CF IO write
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