OX16C950-TQBG 参数 Datasheet PDF下载

OXFORD SEMICONDUCTOR LTD.

OX16C950 rev B

C

ONTENTS

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

REV B ENHANCEMENTS................................................................................................................................................................ 1

DESCRIPTION ................................................................................................................................................................................. 2

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

1 PERFORMANCE COMPARISON .............................................................................................................................................. 6

2 BLOCK DIAGRAM ..................................................................................................................................................................... 7

3 PIN INFORMATION.................................................................................................................................................................... 8

4 PIN DESCRIPTIONS .................................................................................................................................................................. 9

4.1

F

URTHER

P

IN

I

NFORMATION

................................................................................................................................................. 12

5 MODE SELECTION.................................................................................................................................................................. 14

5.1

450 M

ODE

........................................................................................................................................................................... 14

5.2

550 M

ODE

........................................................................................................................................................................... 14

5.3

E

XTENDED

550 M

ODE

.......................................................................................................................................................... 14

5.4

750 M

ODE

........................................................................................................................................................................... 14

5.5

650 M

ODE

........................................................................................................................................................................... 14

5.6

950 M

ODE

........................................................................................................................................................................... 15

6 REGISTER DESCRIPTION TABLES....................................................................................................................................... 16

7 RESET CONFIGURATION....................................................................................................................................................... 20

7.1

H

ARDWARE

R

ESET

............................................................................................................................................................... 20

7.2

S

OFTWARE

R

ESET

............................................................................................................................................................... 20

8 TRANSMITTER & RECEIVER FIFOS...................................................................................................................................... 21

8.1

FIFO C

ONTROL

R

EGISTER

‘FCR’ ......................................................................................................................................... 21

9 LINE CONTROL & STATUS .................................................................................................................................................... 22

9.1

F

ALSE

S

TART

B

IT

D

ETECTION

............................................................................................................................................... 22

9.2

L

INE

C

ONTROL

R

EGISTER

‘LCR’ ........................................................................................................................................... 22

9.3

L

INE

S

TATUS

R

EGISTER

‘LSR’.............................................................................................................................................. 23

10 INTERRUPTS & SLEEP MODE............................................................................................................................................... 24

10.1 I

NTERRUPT

E

NABLE

R

EGISTER

‘IER’ ..................................................................................................................................... 24

10.2 I

NTERRUPT

S

TATUS

R

EGISTER

‘ISR’ ..................................................................................................................................... 25

10.3 I

NTERRUPT

D

ESCRIPTION

..................................................................................................................................................... 25

10.4 S

LEEP

M

ODE

....................................................................................................................................................................... 26

11 MODEM INTERFACE............................................................................................................................................................... 26

11.1 M

ODEM

C

ONTROL

R

EGISTER

‘MCR’ ..................................................................................................................................... 26

11.2 M

ODEM

S

TATUS

R

EGISTER

‘MSR’ ........................................................................................................................................ 27

12 OTHER STANDARD REGISTERS .......................................................................................................................................... 28

12.1 D

IVISOR

L

ATCH

R

EGISTERS

‘DLL & DLM’ ............................................................................................................................. 28

12.2 S

CRATCH

P

AD

R

EGISTER

‘SPR’ ........................................................................................................................................... 28

13 AUTOMATIC FLOW CONTROL .............................................................................................................................................. 29

13.1 E

NHANCED

F

EATURES

R

EGISTER

‘EFR’................................................................................................................................ 29

13.2 S

PECIAL

C

HARACTER

D

ETECTION

......................................................................................................................................... 30

13.3 A

UTOMATIC

I

N

-

BAND

F

LOW

C

ONTROL

................................................................................................................................... 30

13.4 A

UTOMATIC

O

UT

-

OF

-

BAND

F

LOW

C

ONTROL

........................................................................................................................... 30

14 BAUD RATE GENERATION.................................................................................................................................................... 31

14.1 G

ENERAL

O

PERATION

.......................................................................................................................................................... 31

14.2 C

LOCK

P

RESCALER

R

EGISTER

‘CPR’.................................................................................................................................... 32

14.3 T

IMES

C

LOCK

R

EGISTER

‘TCR’............................................................................................................................................. 32

14.4 I

NPUT

C

LOCK

O

PTIONS

........................................................................................................................................................ 34

14.5 TTL C

LOCK

M

ODULE

........................................................................................................................................................... 34

DS-0031 Sep 05

External—Free Release

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