GL850 USB 2.0 4-Port HUB Controller
©2000-2003 Genesys Logic Inc.—All rights reserved. Page 4
TABLE OF CONTENTS
CHAPTER 1 GENERAL DESCRIPTION........................................................................ 9
CHAPTER 2 FEATURES ................................................................................................. 10
CHAPTER 3 PIN ASSIGNMENT.................................................................................... 11
3.1 PINOUTS ....................................................................................................................... 11
3.2 PIN LIST........................................................................................................................ 12
3.3 PIN DESCRIPTIONS ....................................................................................................... 13
CHAPTER 4 BLOCK DIAGRAM................................................................................... 15
CHAPTER 5 FUNCTION DESCRIPTION .................................................................... 16
5.1 GENERAL...................................................................................................................... 16
5.1.1 USPORT Transceiver......................................................................................... 16
5.1.2 PLL (Phase Lock Loop) ..................................................................................... 16
5.1.3 FRTIMER ........................................................................................................... 16
5.1.4 µC ......................................................................................................................... 16
5.1.5 UTM (USB2.0 Transceiver Macrocell Interface) ............................................ 16
5.1.6 USPORT logic ..................................................................................................... 16
5.1.7 SIE (Serial Interface Engine)............................................................................. 16
5.1.8 Control/Status register ....................................................................................... 16
5.1.9 REPEATER ........................................................................................................ 17
5.1.10 TT (Transaction Translator) ........................................................................... 17
5.1.11 REPEATER/TT routing logic ......................................................................... 17
5.1.11.1 Connected to 1.1 Host/Hub ...................................................................... 17
5.1.11.2 Connected to USB2.0 Host/Hub .............................................................. 18
5.1.12 DSPORT logic ................................................................................................... 18
5.1.13 DSPORT Transceiver....................................................................................... 18
5.2 CONFIGURATION AND I/O SETTINGS .......................................................................... 19
5.2.1 RESET# Setting .................................................................................................. 19
5.2.2 PGANG/SUSPND Setting .................................................................................. 20
5.2.3 SELF/BUS Power Setting .................................................................................. 21
5.2.4 LED Connections................................................................................................ 22
5.2.5 EEPROM Setting................................................................................................ 22
5.3 USB PROTOCOLS ......................................................................................................... 23
