DS-0023 February 2007

External—Free Release

Page 3 of 74

OXCFU950 DATA SHEET

OXFORD SEMICONDUCTOR, INC.

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