GPUSB101A

© Generalplus Technology Inc.

Proprietary & Confidential

2

Sep 24, 2014

Version: 1.4

Table of Contents

PAGE

1. GENERAL DESCRIPTION .......................................................................................................................................................................... 4

2. APPLICATION FIELD.................................................................................................................................................................................. 4

3. FEATURES.................................................................................................................................................................................................. 4

4. BLOCK DIAGRAM ...................................................................................................................................................................................... 4

5. SIGNAL DESCRIPTIONS............................................................................................................................................................................ 5

5.1. PIN MAP ............................................................................................................................................................................................... 6

5.2. PAD ASSIGNMENT ................................................................................................................................................................................. 7

6. FUNCTIONAL DESCRIPTIONS.................................................................................................................................................................. 8

6.1. POWER SAVING MODE ........................................................................................................................................................................... 8

6.2. PLL (PHASE LOCK LOOP)....................................................................................................................................................................... 8

6.3. I/O ........................................................................................................................................................................................................ 8

6.4. PARALLEL BUS....................................................................................................................................................................................... 9

6.4.1 The description of parallel bus I/O ............................................................................................................................................ 9

6.4.2 The function of parallel bus....................................................................................................................................................... 9

6.4.3 Timing diagram ......................................................................................................................................................................... 9

6.4.4 Timing constrain...................................................................................................................................................................... 10

7. ELECTRICAL SPECIFICATIONS ............................................................................................................................................................. 11

7.1. ABSOLUTE MAXIMUM RATINGS ..............................................................................................................................................................11

7.2. DC CHARACTERISTICS (VDD = 3.3V, TA = 25℃) ...................................................................................................................................11

7.3. REGULATOR CHARACTERISTICS.............................................................................................................................................................11

8. APPLICATION CIRCUITS ......................................................................................................................................................................... 13

9. PACKAGE/ORDERING INFORMATION................................................................................................................................................... 14

9.1. ORDERING INFORMATION ..................................................................................................................................................................... 14

9.2. PACKAGE INFORMATION ....................................................................................................................................................................... 14

10. GPUSB101A USER'S GUIDE ................................................................................................................................................................... 17

10.1.INTRODUCTION .................................................................................................................................................................................... 17

10.1.1.

Features ............................................................................................................................................................................. 17

10.2.SYSTEM FUNCTION DIAGRAM ............................................................................................................................................................... 17

10.2.1.

SPI interface: 4 GPIO + 4 SPI ............................................................................................................................................ 17

10.2.2.

Parallel Bus 8 bit interface: 5 GPIO control pin + 8 GPIO data pin .................................................................................... 18

10.2.3.

Parallel Bus 4 bit interface: 5 GPIO control pin + 4 GPIO data pin .................................................................................... 19

10.2.4.

Software UART: 2 GPIO pin ............................................................................................................................................... 20

10.3.USB BULK ONLY COMMAND PROTOCOL ............................................................................................................................................... 21

10.3.1.

Command Block Wrapper (CBW)....................................................................................................................................... 21

10.3.2.

Command Status Wrapper (CSW) ..................................................................................................................................... 22

10.4.VENDER COMMAND ............................................................................................................................................................................. 23

10.4.1.

Get IC version..................................................................................................................................................................... 24

10.4.2.

SPI Flash Read .................................................................................................................................................................. 24

10.4.3.

SPI Flash Write................................................................................................................................................................... 25

10.4.4.

SPI Flash Sector Erase ...................................................................................................................................................... 26

10.4.5.

SPI Flash Chip Erase ......................................................................................................................................................... 26