REV. 1.4.2 3.0 UART INTERNAL REGISTERS The L580 has a set of configurat" />
XR16L580
22
SMALLEST 2.25V TO 5.5V UART WITH 16-BYTE FIFO AND POWERSAVE
REV. 1.4.2
3.0 UART INTERNAL REGISTERS
The L580 has a set of configuration registers selected by address lines A0, A1 and A2 with CS# asserted. The
complete register set is shown on
TABLE 5: UART INTERNAL REGISTERS
A2,A1,A0 ADDRESSES
REGISTER
READ/WRITE
COMMENTS
16C550 COMPATIBLE REGISTERS
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
0 0 1
DLM - Div Latch High Byte
Read/Write
0 0 0
DREV - Device Revision Code
Read-only
DLL, DLM
= 0x00,
LCR[7] = 1
0 0 1
DVID - Device Identification Code
Read-only
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
LCR
≠ 0xBF
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 - Scratchpad Register
Read/Write
LCR
≠ 0xBF
ENHANCED REGISTERS
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
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參數(shù)描述
XR16L580IL-F 制造商:Exar Corporation 功能描述:IC SGL UART 3MBPS 5.5V 32-QFN
XR16L580ILTR 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
XR16L580ILTR-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
XR16L580IM 制造商:EXAR 制造商全稱:EXAR 功能描述:SMALLEST 2.25V TO 5.5V UART WITH 16-BYTE FIFO AND POWERSAVE
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