GL852 USB 2.0 MTT HUB Controller
AMBER1/
EE_CS
10 DP2
B
B
P
22 DP4
B
O
O
34 DVDD
P
46
O
P
P
GREEN2/
EE_DO
11 RREF
12 AVDD
23 GREEN4
24 AMBER4
35
36
O
O
47 DGND
48 DVDD
AMBER2/
EE_DI
Table 3.3 GL852 28Pin List
Pin# Pin Name Type Pin# Pin Name Type Pin# Pin Name Type Pin# Pin Name Type
1
2
3
4
5
6
7
DM0
DP0
B
B
B
B
P
8
9
RREF
B
P
I
15 DM4
B
B
22 PSELF
I_5V
B
AVDD
16 DP4
23 PGANG
DM1
DP1
10 X1
17 RESET#
18 TEST/SCL
I_5V 24 OVCUR2# I_5V
I/B 25
11 X2
I
OVCUR1# I_5V
AVDD
DM2
DP2
12 DM3
13 DP3
14 AVDD
B
B
P
19 OVCUR4# I_5V 26
20 OVCUR3# I_5V 27
SDA
NC
O
-
B
B
V33
28
P
21 DVDD
P
3.3 Pin Descriptions
Table 3.4 - Pin Descriptions
USB Interface
GL852
64 Pin# 48Pin# 28 Pin#
Pin Name
I/O Type
Description
DM0,DP0
DM1,DP1
DM2,DP2
DM3,DP3
DM4,DP4
3,4
3,4
5,6
1,2
3,4
6,7
B
B
B
B
B
USB signals for USPORT
8,9
USB signals for DSPORT1
USB signals for DSPORT2
USB signals for DSPORT3
USB signals for DSPORT4
14,15
25,26
31,32
9,10
17,18 12,13
21,22 15,16
A 680Ω resister must be connected between RREF and
analog ground (AGND).
RREF
17
11
8
B
Note: USB signals must be carefully handled in PCB routing. For detailed information, please refer to
GL852 Design Guideline.
HUB Interface
GL852
64 Pin# 48Pin# 28 Pin#
Pin Name
I/O Type
Description
56,54,
42,40
42,40, 25,24,
30,28 20,19
I
(pu)
Active low. Over current indicator for DSPORT1~4
OVCUR1# is the only over current flag for GANG mode.
Active low. Power enable output for DSPORT1~4
PWREN1# is the only power-enable output for GANG
mode.
OVCUR1#~4
PWREN1#~4
57,55,
43,41
43,41,
-
O
31,29
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