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OXCF950 rev B DATA SHEET V 1.0

OXFORD SEMICONDUCTOR LTD.

FEATURES.....................................................................................................................................................................................1

DESCRIPTION...............................................................................................................................................................................1

SUMMARY OF DIFFERENCES BETWEEN OXCF950 AND OXCF950 REV B.....................................................2

CONTENTS.....................................................................................................................................................................................3

1 BLOCK DIAGRAM..............................................................................................................................................................6

2 PIN INFORMATION............................................................................................................................................................ 7

3 PIN DESCRIPTIONS ..........................................................................................................................................................8

4 CONFIGURATION & OPERATION.............................................................................................................................11

4.1

MODE SELECTION............................................................................................................................................................. 11

4.1.1

GENERIC MODE............................................................................................................................................................ 11

4.1.2

C950 MODE .................................................................................................................................................................... 11

4.1.3

NORMAL/LOCAL BUS MODES...................................................................................................................................... 11

4.2

PCMCIA/CF OPERATION .................................................................................................................................................. 11

5 PCMCIA / CF TARGET CONTROLLER....................................................................................................................13

5.1

OPERATION........................................................................................................................................................................ 13

5.2

CONFIGURATION SPACE (CARD INFORMATION STRUCTURE) ................................................................................. 13

5.2.1

LOCAL BUS MODE SPACE MAP .................................................................................................................................. 13

5.2.2

NORMAL MODE SPACE MAP....................................................................................................................................... 14

5.3

ACCESS TO IO FUNCTION ............................................................................................................................................... 14

5.3.1

ACCESS TO INTERNAL UART ...................................................................................................................................... 14

5.3.2

ACCESS TO LOCAL BUS .............................................................................................................................................. 14

5.3.3

ACCESSING LOCAL CONFIGURATION REGISTERS ................................................................................................. 15

5.4

CF / PCMCIA INTERRUPT................................................................................................................................................. 19

5.4.1

INTERRUPT GENERATION ........................................................................................................................................... 19

5.4.2

INTERRUPT SOURCES................................................................................................................................................. 19

5.5

CF/PCMCIA FUNCTION CONFIGURATION REGISTERS ............................................................................................... 20

5.5.1

CONFIGURATION OPTIONS REGISTER ‘COR’ (OF FSET 0XF8) ............................................................................... 20

5.5.2

CONFIGURATION STATUS REGISTER ‘CSR’ (OFFSET 0XFA) ................................................................................. 21

5.5.3

PIN REPLACEMENT REGISTER ‘PRR’ (OFFSET 0 XFC) ............................................................................................ 22

5.5.4

SOCKET AND COPY REGISTER ‘SCR’ (OFFSET 0XFE) ............................................................................................ 23

5.6

CARD INFORMATION STRUCTURE................................................................................................................................. 23

5.6.1

LOCAL BUS MODE......................................................................................................................................................... 23

5.6.2

NORMAL MODE............................................................................................................................................................. 25

5.6.3

GENERIC NORMAL MODE............................................................................................................................................ 27

6 INTERNAL 950 UART......................................................................................................................................................30

6.1

MODE SELECTION............................................................................................................................................................. 30

6.1.1

450 MODE....................................................................................................................................................................... 30

6.1.2

550 MODE....................................................................................................................................................................... 30

6.1.3

750 MODE....................................................................................................................................................................... 30

6.1.4

650 MODE....................................................................................................................................................................... 30

6.1.5

950 MODE....................................................................................................................................................................... 30

6.2

REGISTER DESCRIPTION TABLES ................................................................................................................................. 32

6.3

RESET CONFIGURATION ................................................................................................................................................. 35

6.3.1

HOST RESET .................................................................................................................................................................. 35

6.3.2

SOFTWARE RESET ....................................................................................................................................................... 35

6.4

TRANSMITTER & RECEIVER FIFOS................................................................................................................................ 35