DS-0033 Sep 05

External-Free Release

Page 3

OXCB950

OXFORD SEMICONDUCTOR LTD.

7.6.4

SLEEP MODE............................................................................................................................................................... 40

7.7

MODEM INTERFACE ....................................................................................................................................................... 40

7.7.1

MODEM CONTROL REGISTER ‘MCR’........................................................................................................................ 40

7.7.2

MODEM STATUS REGISTER ‘MSR’ ........................................................................................................................... 41

7.8

OTHER STANDARD REGISTERS ................................................................................................................................... 41

7.8.1

DIVISOR LATCH REGISTERS ‘DLL & DLM’................................................................................................................ 41

7.8.2

SCRATCH PAD REGISTER ‘SPR’ ............................................................................................................................... 41

7.9

AUTOMATIC FLOW CONTROL....................................................................................................................................... 42

7.9.1

ENHANCED FEATURES REGISTER ‘EFR’................................................................................................................. 42

7.9.2

SPECIAL CHARACTER DETECTION .......................................................................................................................... 43

7.9.3

AUTOMATIC IN-BAND FLOW CONTROL ................................................................................................................... 43

7.9.4

AUTOMATIC OUT-OF-BAND FLOW CONTROL ......................................................................................................... 43

7.10

BAUD RATE GENERATION............................................................................................................................................. 44

7.10.1

GENERAL OPERATION............................................................................................................................................... 44

7.10.2

CLOCK PRESCALER REGISTER ‘CPR’...................................................................................................................... 44

7.10.3

TIMES CLOCK REGISTER ‘TCR’................................................................................................................................. 44

7.10.4

EXTERNAL 1X CLOCK MODE..................................................................................................................................... 46

7.10.5

CRYSTAL OSCILLATOR CIRCUIT .............................................................................................................................. 46

7.11

ADDITIONAL FEATURES ................................................................................................................................................ 46

7.11.1

ADDITIONAL STATUS REGISTER ‘ASR’ .................................................................................................................... 46

7.11.2

FIFO FILL LEVELS ‘TFL & RFL’ ................................................................................................................................... 47

7.11.3

ADDITIONAL CONTROL REGISTER ‘ACR’................................................................................................................. 47

7.11.4

TRANSMITTER TRIGGER LEVEL ‘TTL’ ...................................................................................................................... 48

7.11.5

RECEIVER INTERRUPT. TRIGGER LEVEL ‘RTL’ ...................................................................................................... 48

7.11.6

FLOW CONTROL LEVELS ‘FCL’ & ‘FCH’ .................................................................................................................... 48

7.11.7

DEVICE IDENTIFICATION REGISTERS...................................................................................................................... 49

7.11.8

CLOCK SELECT REGISTER ‘CKS’.............................................................................................................................. 49

7.11.9

NINE-BIT MODE REGISTER ‘NMR’............................................................................................................................. 49

7.11.10

MODEM DISABLE MASK ‘MDM’.................................................................................................................................. 50

7.11.11

READABLE FCR ‘RFC’................................................................................................................................................. 50

7.11.12

GOOD-DATA STATUS REGISTER ‘GDS’.................................................................................................................... 51

7.11.13

DMA STATUS REGISTER ‘DMS’ ................................................................................................................................. 51

7.11.14

PORT INDEX REGISTER ‘PIX’..................................................................................................................................... 51

7.11.15

CLOCK ALTERATION REGISTER ‘CKA’ ..................................................................................................................... 51

8

SERIAL EEPROM SPECIFICATION .....................................................................................................52

8.1

EEPROM DATA ORGANISATION ................................................................................................................................... 52

8.1.1

ZONE0: HEADER ......................................................................................................................................................... 52

8.1.2

ZONE1 : POWER MANAGEMENT DATA AND DATA_SCALE ZONE ...................................................................... 53

8.1.3

ZONE2: LOCAL CONFIGURATION REGISTER ZONE ............................................................................................... 53

8.1.4

ZONE 3 : CARDBUS INFORMATION STRUCTURE ................................................................................................... 53

8.1.5

ZONE4: PCI CONFIGURATION REGISTERS ............................................................................................................. 54

8.1.6

ZONE5: FUNCTION ACCESS...................................................................................................................................... 54

9

COMPLIANCE TO PC CARD STANDARDS, 7.0 AND 7.1 .................................................................. 56

10

OPERATING CONDITIONS ............................................................................................................... 59

11

DC ELECTRICAL CHARACTERISTICS............................................................................................ 60

11.1

NORMAL 3.3V I/O BUFFERS........................................................................................................................................... 60

11.2

5.0V TOLERANT I/O BUFFERS...................................................................................................................................... 60

12

AC ELECTRICAL CHARACTERISTICS............................................................................................ 61

12.1

DUAL MODE (CARDBUS/PCI) I/O BUFFERS................................................................................................................ 61

13

POWER CONSUMPTION MEASUREMENTS................................................................................... 62

13.1

STATIC CURRENT CONSUMPTION ............................................................................................................................... 62

13.2

CURRENT CONSUMPTION IN APPLICATION ............................................................................................................... 62