參數(shù)資料
型號： XR16L2552IJ
廠商： EXAR CORP
元件分類： 微控制器/微處理器
英文描述： 2.25V TO 5.5V DUART WITH 16-BYTE FIFO
中文描述： 2 CHANNEL(S), 3.125M bps, SERIAL COMM CONTROLLER, PQCC44
封裝： PLASTIC, LCC-44
文件頁數(shù)： 21/47頁
文件大?。?/td> 748K
代理商： XR16L2552IJ
xr
REV. 1.1.1
XR16L2552
2.25V TO 5.5V DUART WITH 16-BYTE FIFO
21
3.0
UART INTERNAL REGISTERS
Each of the UART channel in the L2552 has its own set of configuration registers selected by address lines A0,
A1 and A2 with CS# and CHSEL selecting the channel. The registers are 16C550 compatible. The complete
register set is shown in
Table 7
and
Table 8
.
T
ABLE
7: UART CHANNEL A AND B UART INTERNAL REGISTERS
A2,A1,A0 A
DDRESSES
R
EGISTER
R
EAD
/W
RITE
C
OMMENTS
16C550 C
OMPATIBLE
R
EGISTERS
0 0 0
RHR - Receive Holding Register
THR - Transmit Holding Register
Read-only
Write-only
LCR[7] = 0
0 0 0
DLL - Div Latch Low Byte
Read/Write
LCR[7] = 1, LCR
≠
0xBF
0 0 1
DLM - Div Latch High Byte
Read/Write
0 1 0
AFR - Alternate Function Register
Read/Write
0 0 0
DREV - Device Revision
Read/Write
LCR[7] = 1, LCR
≠
0xBF,
DLL = 0x00, DLM = 0x00
0 0 1
DVID - Device ID
Read/Write
0 0 1
IER - Interrupt Enable Register
Read/Write
LCR[7] = 0
0 1 0
ISR - Interrupt Status Register
FCR - FIFO Control Register
Read-only
Write-only
0 1 1
LCR - Line Control Register
Read/Write
1 0 0
MCR - Modem Control Register
Read/Write
LCR
≠
0xBF
1 0 1
LSR - Line Status Register
Reserved
Read-only
Write-only
1 1 0
MSR - Modem Status Register
Reserved
Read-only
Write-only
1 1 1
SPR - Scratch Pad Register
Read/Write
E
NHANCED
R
EGISTERS
0 1 0
EFR - Enhanced Function Register
Read/Write
LCR = 0xBF
1 0 0
Xon-1 - Xon Character 1
Read/Write
1 0 1
Xon-2 - Xon Character 2
Read/Write
1 1 0
Xoff-1 - Xoff Character 1
Read/Write
1 1 1
Xoff-2 - Xoff Character 2
Read/Write
相關(guān)PDF資料
PDF描述
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
XR16L2552IJ-0A-EB 功能描述:UART 接口集成電路 Supports L2552 44 ld PLCC, ISA Interface RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據(jù)速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel
XR16L2552IJ-F 功能描述:UART 接口集成電路 UART RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據(jù)速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel
XR16L2552IJTR 制造商:Rochester Electronics LLC 功能描述: 制造商:Exar Corporation 功能描述:
XR16L2552IJTR-F 功能描述:UART 接口集成電路 UART RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據(jù)速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel
XR16L2552IM 制造商:Rochester Electronics LLC 功能描述: 制造商:Exar Corporation 功能描述:
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