GL422/GL423 USB 2.0 +SD/MMC-controller Combo Solution
TABLE OF CONTENTS
CHAPTER 1 GENERAL DESCRIPTION................................................. 7
1.1 USB INTERFACE...................................................................................... 8
1.2 CARD INTERFACE.................................................................................. 8
1.3 FLASH ACCESS INTERFACE ..................................................................... 8
1.4 CONTROL LOGIC..................................................................................... 8
1.5 EMBEDDED CPU ..................................................................................... 8
CHAPTER 2 FEATURES ........................................................................... 9
2.1 USB 2.0 INTERFACE................................................................................ 9
2.2 SD HOST INTERFACE .............................................................................. 9
2.3 MMC HOST INTERFACE ......................................................................... 9
2.4 FLASH MEMORY INTERFACE ................................................................ 10
2.5 MICRO CONTROLLER AND ANALOG SYSTEM........................................ 10
2.6 PRODUCT PACKAGES ............................................................................ 10
2.7 TECHNOLOGY ....................................................................................... 10
2.8 MANUFACTURE ..................................................................................... 10
CHAPTER 3 PIN ASSIGNMENT ............................................................ 11
3.1 FUNCTION DESCRIPTION ....................................................................... 11
3.1.1 USB specification compliance ...................................................... 11
3.1.2 Integrated USB building blocks................................................... 11
3.1.3 Embedded 8051 micro-controller................................................ 11
3.1.4 3.3V power source ........................................................................ 11
3.1.5 Memory Stick TM interface......................................................... 11
3.1.6 Secure Digital (SD) and Multi Media Card (MMC)................... 11
3.1.7 High efficient hardware engine.................................................... 12
3.1.8 Inter-Media transfer capability ................................................... 12
3.2 BLOCK DIAGRAM................................................................................... 12
3.2.1 UTM.............................................................................................. 12
3.2.2 SIE................................................................................................. 12
3.2.3 EPFIFO......................................................................................... 13
3.2.4 MHE.............................................................................................. 13
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