pt7a6525 Pericom Technology Inc, pt7a6525 Datasheet - Page 3

• Manufacturer Part Number: pt7a6525
• Description: Pt7a6525/6525l/6526 Hdlc Controller
• Manufacturer: Pericom Technology Inc

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Features ............................................................................................................................... 1
Applications ........................................................................................................................ 1
Introduction ........................................................................................................................ 2
Block Diagram .................................................................................................................... 4
Pin Information ................................................................................................................... 5
Functional Description ............................................................................................. 10
Detailed Specifications ............................................................................................ 54
Appendix: Index of Registers ................................................................................... 70
Notes ................................................................................................................................. 71
PT0017(12/05)
Pin Assignment .................................................................................................................................... 5
Pin Configuration ................................................................................................................................. 6
Pin Description .................................................................................................................................... 7
General ............................................................................................................................................. 10
Modes of Operation .......................................................................................................................... 12
Procedural Support (Layer-2 Functions) ............................................................................................ 15
Data Transfer Modes ........................................................................................................................ 19
FIFO Structure ................................................................................................................................. 20
Clock Modes .................................................................................................................................... 22
Bus Configuration .............................................................................................................................. 26
Data Encoding .................................................................................................................................. 27
Special Functions .............................................................................................................................. 27
Operational Description ..................................................................................................................... 29
Registers ........................................................................................................................................... 36
Absolute Maximum Ratings ............................................................................................................... 54
DC Electrical Chacarteristics ............................................................................................................. 55
AC Electrical Characteristics ............................................................................................................. 56
Power Supply and Capacitance Characteristics .................................................................................. 56
Quartz Crystal Specifications ............................................................................................................. 66
Mechanical Information ..................................................................................................................... 67
Contents
PT7A6525/6525L/6526 HDLC Controller
3
Data Sheet
Ver:8