GL640USB Ver la hoja de datos (PDF) - Genesys Logic

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GL640USB

IEEE-1284 to USB Bridge

Genesys Logic 

GL640USB, GL640USB-A

Index

1. Features.................................................................................................................. 2

2. Description .............................................................................................................. 3

3. IEEE 1284 Interface................................................................................................ 3

4. Pin Configuration .................................................................................................... 4

5. Pin Descriptions ...................................................................................................... 5

6. Block Diagram......................................................................................................... 7

7. 8-BIT RISC MCU INSTRUCTION ........................................................................... 9

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

7.2 MCU FUNCTION REGISTERS ....................................................................... 11

7.3 I/O Register Summary ..................................................................................... 15

7.4 USB Register Summary................................................................................... 22

8. INSTRUCTION SET SUMMARY .......................................................................... 27

9. Advantages of GL640USB .................................................................................... 30

10. EPP Timing ........................................................................................................... 31

10.1 EPP Burst Data Write .................................................................................... 31

10.2 EPP Burst Data Read .................................................................................... 32

11. Electrical Characteristics ....................................................................................... 33

11.1 Absolute Maximum Ratings (Voltages referenced to GND)........................... 33

11.2 DC Characteristics (Digital Pins).................................................................... 33

11.3 DC Characteristics (VCP/D+/D-).................................................................... 34

11.4 Switching Characteristics............................................................................... 35

12. Package ............................................................................................................... 36

Revision 1.1

-1-

Jun. 7, 1999

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