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