USB 2.0 Single Interface Card Reader Controller
3.3 Pin Descriptions
Table 3.2 - Pin Descriptions
GL827
100PINS
Pin#
GL827 48PINS
Pin#
Pin name
Type
Description
Internal regulator 1.8V output
VDD18O
AGND1~6
AVDD1~4
VBUS
12
4
5,9,12
6,11,15
N/A
7
P
P
13,14,16,20,21,27
Analog ground #2
Analog power #1
Test only
17,23,24,30
P
15
18
19
22
X
A
A
A
DM
USB D-
DP
8
USB D+
RREF
10
Reference resistor
12MHz Crystal, This is the other terminal of the crystal, or
left open when an external clock source is used to drive
12/48 MHz Clock. It may not be used to drive any external
circuitry other than the crystal circuit.
12MHz Crystal, This pin can be connected to one terminal of
the crystal or can be connected to an external 12MHz clock
when a crystal is not used.
X1
X2
28
29
13
14
A
A
VDD33_1~4
DGND_1~4
VDD5V
31,32,55,56,70,71
33,34,57,58,68,69
51,52
15,26,35
16,27,34
25
P
Digital power 3.3V
Digital ground
P
P
Regulator 5v Input
Regulator 3.3v output
Power MOS 3.3v input
Power MOS 3.3v output
VDD33O
PMOSI
53,54
26
P
72,73
35
PMOS
PMOS
PMOSO
74,75
36
I
TEST_MOD
EXTRSTZ
35
36
17
18
Test mode selection
(pd)
External reset #, the active low signal is used by the system
to reset the chip; The active low pulse should be at least 1 us
wide.
I
(pu)
Ext flash selection
EAB
94
6
B/I, pu
B/I(pu)
SmartMedia CD#, this is the card detection pin when SM
device is inserted, active low.
SM_CDZ
2
XD_CDZ
MS_INS
5
1
B/I (pd) xD-Picture card detection pin, active low.
B/I (pu) Memory Stick INS
49
24
SD Card detection# & MMC Card detection#, this is the card
detection signal from SD/MMC device to indicate if the
device is inserted, Normal high.
B
(pu)
SD_CDZ
48
23
SM_D0~7/
MS_D0~4/
SD_D0~4/
MMC_D0~7
SM data 0~7
B/I MS data 0~3
(pu) SD data 0~3
MMC data 0~7
83,91,76,63,62,64, 40,43,37,29,28,30,
66,77
32,38
Smart Media card Chip Enable
GPIO0 (SM_CE)
SM_ALE/MS_SC
LK/SD_CLK
65
31
B/O, pu
B/O,
(pu)
SmartMedia ALE/ Memory Stick SCLK output./ SD/MMC
CLK
78
7
39
3
SM_WPDZ/
B
SmartMedia WP# / SD Write Protect Detection, this pin is an
Page 13
©2000-2006 Genesys Logic Inc. - All rights reserved.
GENESYS [ GENESYS LOGIC ]
