GL826 USB 2.0 Multi-Slot Flash Card Reader Controller
2.2.3 Pin Description
Table 2.4-Pin Description
Pin Name
AVDD1
RREF
AGND1
DM
DP
AVDD3
AGND3
VDD33
GND
GPIO1~6, 12
TSTMOD
MCSZ
MOEZ
MWEZ
MA15~0
MA6
MA7
MD7~0
CF_CDZ
CF_D15~0
CF_CS0Z
CF_CS1Z
CF_IORZ
CF_IOWZ
CF_RST
CF_IORDY
CF_DMARQ
CF_DMACK
CF_A2~0
SM_WPDZ
SM_D7~0
SM_WPZ
Pin #
Type Description
1
P Analog power
2
A USB Reference resistor
3
P Analog ground
4
A USB D-
5
A USB D+
6
P Analog power
7
P Analog ground
37, 98
P PAD power 3.3V
38, 96, 108
P Digital Ground
8, 26~32
B General purpose IO
24
I, pd Test mode
11
O, pu External flash chip select
9
O, pu External flash output enable
123
O, pu External flash write enable
121~125, 120, 128, 10,
O External flash address ports
127, 126, 119~116, 23~20
118
O Serial EEPROM clock
119
B, pu Serial EEPROM data
12~19
B, pd External flash data ports
25
I, pu CF card detect
60, 58, 56, 54,
52, 77, 76, 74,
59, 57, 55, 53,
51, 75, 73, 72
B CF data ports
61
O, pu CF chip select 0
62
O, pu CF chip select 1
63
O, pu CF IO read
64
O, pu CF IO write
65
O, pu CF reset
66
I, pu CF IO ready
67
I, pd CF DMA request
68
O CF DMA acknowledge
69~71
O CF address
39
I, pu SM WP#
40~47
B, pd SM data ports
48
B, pu SM write protect
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