參數(shù)資料
型號(hào)： OX16C954
廠商： Electronic Theatre Controls, Inc.
英文描述： High Performance Quad UART with 128-byte FIFOs Intel / Motorola Bus Interface
中文描述： UART的高性能四路128字節(jié)的FIFO英特爾/摩托羅拉總線接口
文件頁(yè)數(shù)： 3/54頁(yè)
文件大?。?/td> 529K
代理商： OX16C954
Data Sheet Revision 1.0
Page 3
OX16C954 rev B
OXFORD SEMICONDUCTOR LTD.
C
ONTENTS
FEATURES.................................................................................................................................................................................................1
REV B ENHANCEMENTS.........................................................................................................................................................................1
DESCRIPTION............................................................................................................................................................................................2
CONTENTS.................................................................................................................................................................................................3
1
PERFORMANCE COMPARISON......................................................................................................................................................5
2
BLOCK DIAGRAM...............................................................................................................................................................................7
3
PIN INFORMATION.............................................................................................................................................................................8
4
PIN DESCRIPTIONS .........................................................................................................................................................................10
4.1
Further Pin Information...........................................................................................................................................................15
5
MODE SELECTION...........................................................................................................................................................................16
5.1
450 Mode....................................................................................................................................................................................16
5.2
550 Mode....................................................................................................................................................................................16
5.3
Extended 550 Mode..................................................................................................................................................................16
5.4
750 Mode....................................................................................................................................................................................16
5.5
650 Mode....................................................................................................................................................................................16
5.6
950 Mode....................................................................................................................................................................................17
6
REGISTER DESCRIPTION TABLES...............................................................................................................................................18
7
RESET CONFIGURATION................................................................................................................................................................22
7.1
Hardware Reset.........................................................................................................................................................................22
7.2
Software Reset..........................................................................................................................................................................22
8
TRANSMITTER AND RECEIVER FIFOS........................................................................................................................................23
8.1
FIFO Control Register ‘FCR’...................................................................................................................................................23
9
LINE CONTROL & STATUS.............................................................................................................................................................24
9.1
False Start Bit Detection..........................................................................................................................................................24
9.2
Line Control Register ‘LCR’....................................................................................................................................................24
9.3
Line Status Register ‘LSR’......................................................................................................................................................25
10
INTERRUPTS & SLEEP MODE.......................................................................................................................................................26
10.1
Interrupt Enable Register ‘IER’...............................................................................................................................................26
10.2
Interrupt Status Register ‘ISR’................................................................................................................................................27
10.3
Interrupt Description................................................................................................................................................................27
10.4
Sleep Mode.................................................................................................................................................................................28
11
MODEMINTERFACE........................................................................................................................................................................28
11.1
Modem Control Register ‘MCR’..............................................................................................................................................28
11.2
Modem Status Register ‘MSR’................................................................................................................................................29
12
OTHER STANDARD REGISTERS...................................................................................................................................................30
12.1
Divisor Latch Registers ‘DLL & DLM....................................................................................................................................30
12.2
Scratch Pad Register ‘SPR’.....................................................................................................................................................30
13
AUTOMATIC FLOW CONTROL.......................................................................................................................................................31
13.1
Enhanced Features Register ‘EFR’........................................................................................................................................31
13.2
Special Character Detection...................................................................................................................................................32
13.3
Automatic In-band Flow Control............................................................................................................................................32
13.4
Automatic Out-of-band Flow Control....................................................................................................................................32
14
BAUD RATE GENERATION.............................................................................................................................................................33
14.1
General Operation.....................................................................................................................................................................33
14.2
Clock Prescaler Register ‘CPR’..............................................................................................................................................34
14.3
Times Clock Register ‘TCR’....................................................................................................................................................34
14.4
Input Clock Options..................................................................................................................................................................36
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