OXCFU950_07 Datasheet, PDF (3/74 Pages) Oxford Semiconductor – USB/UART multi-function 16-bit PC Card device

OXFORD SEMICONDUCTOR, INC.
OXCFU950 DATA SHEET
CONTENTS
FEATURES ................................................................................................................................................... 1
DESCRIPTION .............................................................................................................................................. 1
CONTENTS................................................................................................................................................... 3
REVISION HISTORY..................................................................................................................................... 5
1 BLOCK DIAGRAM ................................................................................................................................ 7
2 FUNCTIONAL OVERVIEW.................................................................................................................... 8
2.1 INTRODUCTION ................................................................................................................................................................. 8
2.2 ATTRIBUTE MEMORY ....................................................................................................................................................... 8
2.3 COMMON MEMORY........................................................................................................................................................... 8
2.4 I/O SPACE........................................................................................................................................................................... 8
2.5 USB HOST CONTROLLER ................................................................................................................................................ 8
2.6 UART INTERFACE ............................................................................................................................................................. 9
2.7 EEPROM ............................................................................................................................................................................. 9
2.8 SOFTWARE DRIVERS ....................................................................................................................................................... 9
3 PIN INFORMATION ............................................................................................................................. 10
4 PIN DESCRIPTIONS............................................................................................................................ 11
4.1 POWER SUPPLY FILTERING.......................................................................................................................................... 13
4.1.1 PLL SUPPLY DE-COUPLING....................................................................................................................................... 13
4.1.2 INTERNAL VOLTAGE REGULATOR SUPPLY DE-COUPLING .................................................................................. 14
4.2 OSCILLATOR SPECIFICATION....................................................................................................................................... 14
4.3 I/O PINS FOR EEPROM DIRECT ACCESS PROGRAMMING MODE ............................................................................ 14
5 CONFIGURATION & OPERATION ..................................................................................................... 15
5.1 MODE SELECTION .......................................................................................................................................................... 15
5.1.1 NORMAL MODE ........................................................................................................................................................... 15
5.1.2 GENERIC MODE .......................................................................................................................................................... 15
5.2 16-BIT PC CARD & COMPACTFLASH/CF+ OPERATION ............................................................................................. 15
6 PC CARD & COMPACTFLASH/CF+ TARGET CONTROLLER ......................................................... 16
6.1 OPERATION ..................................................................................................................................................................... 16
6.2 OXCFU950 MEMORY SPACE MAP................................................................................................................................. 16
6.3 FUNCTION ACCESS ........................................................................................................................................................ 17
6.3.1 I/O ACCESS WINDOWS............................................................................................................................................... 17
6.4 I/O SPACE REGISTER MAP ............................................................................................................................................ 17
6.5 I/O SPACE REGISTERS................................................................................................................................................... 18
6.6 PC CARD/COMPACTFLASH INTERRUPT...................................................................................................................... 21
6.6.1 INTERRUPT GENERATION ......................................................................................................................................... 21
6.6.2 INTERRUPT SOURCES ............................................................................................................................................... 21
6.6.3 MIO INTERRUPTS........................................................................................................................................................ 22
6.6.4 UART INTERRUPTS..................................................................................................................................................... 22
6.6.5 USB INTERRUPTS ....................................................................................................................................................... 22
6.6.6 UART/USB TEST INTERRUPTS ................................................................................................................................. 22
6.6.7 CONFIGURATION & STATUS REGISTER INTERRUPT REQUEST/ACKNOWLEDGE............................................. 22
6.7 PC CARD/COMPACTFLASH FUNCTION CONFIGURATION REGISTERS................................................................... 23
6.7.1 CONFIGURATION OPTIONS REGISTER—COR (OFFSET 0X00) ............................................................................. 23
6.7.2 CONFIGURATION STATUS REGISTER—CSR (OFFSET 0X02) ............................................................................... 24
6.7.3 PIN REPLACEMENT REGISTER—PRR (OFFSET 0X04)........................................................................................... 25
6.7.4 SOCKET & COPY REGISTER—SCR (OFFSET 0X06) ............................................................................................... 25
DS-0023 February 2007
External—Free Release
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