GL850G-MNGXX GENESYS [GENESYS LOGIC], GL850G-MNGXX Datasheet - Page 20

• Manufacturer Part Number: GL850G-MNGXX
• Description: USB 2.0 HUB Controller
• Manufacturer: GENESYS [GENESYS LOGIC]

Note: 1. VID_H/VID_L: high/low byte of VID value
©2000-2007 Genesys Logic Inc. - All rights reserved.
The schematics between GL850G and 93C46 is depicted in the following figures:
GL850G firstly verifies the check sum after power on reset. If the check sum is correct, GL850G will take
the configuration of 93C46 as part of the descriptor contents. To prevent the content of 93C46 from being
over-written, amber LED will be disabled when 93C46 exists.
2. PID_H/PID_L: high/low byte of PID value
3. CHKSUM: CHKSUM must equal to VID_H + VID_L + PID_H + PID_L + 1,otherwise
4. PORT_NO: port number, value must be 1~4.
5. MaxPower : Describe the maximum power consumption, range=0Ma~500Ma .
6. DEVICE REMOVALBE:
7. VENDOR LENGTH: offset 10h contains the length of the vendor string. Values of vendor string is
8. PRODUCT LENGTH: offset 40h contains the length of product string. Values of product string is
9. SERIAL NUMBER LENGTH: offset 70h contains the value of serial number string. Values of serial
firmware will ignore the EEPROM settings.
Value -> 00H~FAH (unit = 2Ma)
contained from 11h~3Fh.
contained from 41h~6Fh.
number string is contained after offset 71h.
0: Device attached to this port is removable.
1: Device attached to this port is non-removable.
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Figure 5.8 – Schematics Between GL850G and 93C46
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EE_SK
EE_DO
EE_CS
EE_DI
REMOVABLE
PORT4
CS
SK
DI
DO
GL850G USB 2.0 Low-Power HUB Controller
REMOVABLE
PORT3
93C46
GND
VCC
NC
NC
REMOVABLE
PORT2
DVDD
REMOVABLE
PORT1
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