GL602USB datasheet(2/35 Pages) ETC1

2 / 35 page

Revision 1.6

-2-

02/28/2000

Index

FEATURES............................................................................................................4

FUNCTIONAL OVERVIEW...............................................................................5

PIN DEFINITIONS AND DESCRIPTIONS ......................................................6

3.1

GL602USB ............................................................................................................................... 6

3.2

GL602USB-A ........................................................................................................................... 7

FUNCTIONAL DESCRIPTION .........................................................................9

4.1

MEMORY ORGANIZATION ................................................................................................. 9

4.2

USB FUNCTION REGISTERS ............................................................................................. 11

4.3

MCU FUNCTION REGISTERS............................................................................................ 16

4.4

GENERAL PURPOSE I/O PORTS ....................................................................................... 18

4.5

TIMER INTERRUPT ............................................................................................................. 18

4.6

USB ENGINE......................................................................................................................... 19

4.7

INSTRUCTION SET SUMMARY ........................................................................................ 21

Firmware Programming Guide..........................................................................23

5.1

USB Power On Reset and Bus Reset Initialization................................................................. 23

5.2

Suspend/Resume/Wakeup ...................................................................................................... 24

5.3

Receive Packet via Endpoint 0 ............................................................................................... 25

5.4

Transmit Packet via Endpoint 0.............................................................................................. 26

5.5

Transmit Packet via Endpoint 1/2/3........................................................................................ 27

5.6

Timer Interrupt ....................................................................................................................... 28

5.7

Conditional Branch ................................................................................................................. 28

5.8

Change Register Bank ............................................................................................................28

5.9

Change Code Bank ................................................................................................................. 28

5.10

Receive Data from PS/2 Mouse Port ...................................................................................... 29

5.11

Scan Key Matrix ..................................................................................................................... 30

5.12

Turn LED On/Off ................................................................................................................... 30

ABSOLUTE MAXIMUM RATINGS................................................................31

ELECTRICAL CHARACTERISTICS.............................................................31

PACKAGE DIAGRAMS ....................................................................................33

8.1

40-pin P-DIP........................................................................................................................... 33

8.2

24-pin SOP ............................................................................................................................. 34

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