參數(shù)資料
型號： XR16L78464-TQFP
廠商： Exar Corporation
英文描述： HIGH PERFORMANCE 2.97V TO 5.5V QUAD UART
中文描述： 高性能2.97V至5.5V UART的四
文件頁數(shù)： 25/52頁
文件大?。?/td> 625K
代理商： XR16L78464-TQFP
á
REV. 1.2.0
XR16L784
HIGH PERFORMANCE 2.97V TO 5.5V QUAD UART
25
3.2
The first 8 registers are 16550 compatible with EXAR enhanced feature registers located on the upper 8
addresses. The 4 sets of UART configuration registers are decoded using address lines A0 to A3 as shown
below.
UART CHANNEL CONFIGURATION REGISTERS
.
T
ABLE
11: UART CHANNEL CONFIGURATION REGISTERS
A
DDRESS
R
EGISTER
R
EAD
/W
RITE
C
OMMENTS
A3
A2
A1
A0
16550 C
OMPATIBLE
R
EGISTERS
0
0
0
0
RHR - Receive Holding Register
Read-only
LCR[7] = 0
0
0
0
0
THR - Transmit Holding Register
Write-only
LCR[7] = 0
0
0
0
0
DLL - Div Latch Low
Read/Write
LCR[7] = 1
0
0
0
1
DLM - Div Latch High
Read/Write
LCR[7] = 1
0
0
0
1
IER - Interrupt Enable Register
Read/Write
LCR[7] = 0
0
0
1
0
ISR - Interrupt Status Register
Read-only
0
0
1
0
FCR - FIFO Control Register
Write-only
0
0
1
1
LCR - Line Control Register
Read/Write
0
1
0
0
MCR - Modem Control Register
Read/Write
0
1
0
1
LSR - Line Status Register
Read-only
0
1
1
0
MSR - Modem Status Register
Read-only
0
1
1
0
RS485 Turn-Around Delay Register
Write-only
0
1
1
1
SPR - Scratch Pad Register
Read/Write
E
NHANCED
R
EGISTERS
1
0
0
0
FCTR - Feature Control Register
Read/Write
1
0
0
1
EFR - Enhanced Function Register
Read/Write
1
0
1
0
TXCNT - Transmit FIFO Level Counter
Read-only
1
0
1
0
TXTRG - Transmit FIFO Trigger Level
Write-only
1
0
1
1
RXCNT - Receive FIFO Level Counter
Read-only
1
0
1
1
RXTRG - Receive FIFO Trigger Level
Write-only
1
1
0
0
Xoff-1 - Xoff Character 1
Write-only
1
1
0
0
Xchar
Read-only
Xon,Xoff Rcvd. Flags
1
1
0
1
Xoff-2 - Xoff Character 2
Write-only
1
1
1
0
Xon-1 - Xon Character 1
Write-only
1
1
1
1
Xon-2 - Xon Character 2
Write-only
相關(guān)PDF資料
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
XR16L784CV 制造商:EXAR 制造商全稱:EXAR 功能描述:HIGH PERFORMANCE 2.97V TO 5.5V QUAD UART
XR16L784CV-0A-EVB 功能描述:UART 接口集成電路 Supports L784 64 ld TQFP, 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
XR16L784CV-0B-EVB 功能描述:UART 接口集成電路 Supports L784 64 ld TQFP, PCI 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
XR16L784CV-F 功能描述:UART 接口集成電路 2.97V-5.5V 64B FIFO temp 0C to 70C 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
XR16L784CVTR-F 功能描述:UART 接口集成電路 3.3V QUAD 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
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