REV. 1.4.3 5V PCI BUS OCTAL UART 37 . TABLE 11: UART CHANNEL CONFIGU" />
參數資料
型號: XR17C158IV-F
廠商: Exar Corporation
文件頁數: 31/67頁
文件大?。?/td> 0K
描述: IC UART PCI BUS OCTAL 144LQFP
標準包裝: 60
特點: *
通道數: 8
FIFO's: 64 字節(jié)
規(guī)程: RS485
電源電壓: 4.5 V ~ 5.5 V
帶自動流量控制功能:
帶IrDA 編碼器/解碼器:
帶故障啟動位檢測功能:
帶調制解調器控制功能:
安裝類型: 表面貼裝
封裝/外殼: 144-LQFP
供應商設備封裝: 144-LQFP(20x20)
包裝: 托盤
其它名稱: 1016-1646
XR17C158IV-F-ND
xr
XR17C158
REV. 1.4.3
5V PCI BUS OCTAL UART
37
.
TABLE 11: UART CHANNEL CONFIGURATION REGISTERS
ADDRESS
REGISTER
READ/WRITE
COMMENTS
A3
A2
A1
A0
16550 COMPATIBLE REGISTERS
0
RHR - Receive Holding Register
Read-only
LCR[7] = 0
0
THR - Transmit Holding Register
Write-only
LCR[7] = 0
0
DLL - Div Latch Low
Read/Write
LCR[7] = 1
0
1
DLM - Div Latch High
Read/Write
LCR[7] = 1
0
1
IER - Interrupt Enable Register
Read/Write
LCR[7] = 0
0
1
0
ISR - Interrupt Status Register
Read-only
0
1
0
FCR - FIFO Control Register
Write-only
0
1
LCR - Line Control Register
Read/Write
0
1
0
MCR - Modem Control Register
Read/Write
0
1
0
1
LSR - Line Status Register
Read-only
0
1
0
MSR - Modem Status Register
Read-only
0
1
0
RS485 Turn-Around Delay Register
Write-only
0
1
SPR - Scratch Pad Register
Read/Write
ENHANCED REGISTERS
1
0
FCTR - Feature Control Register
Read/Write
1
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
RXCNT - Receive FIFO Level Counter
Read-only
1
0
1
RXTRG - Receive FIFO Trigger Level
Write-only
1
0
Xoff-1 - Xoff Character 1
Write-only
1
0
Xchar
Read-only
Xon,Xoff Rcvd. Flags
1
0
1
Xoff-2 - Xoff Character 2
Write-only
1
0
Xon-1 - Xon Character 1
Write-only
1
Xon-2 - Xon Character 2
Write-only
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