参数资料
型号: XR18W750IL48-F
厂商: Exar Corporation
文件页数: 18/44页
文件大小: 0K
描述: IC WIRELESS UART CTRLR 48QFN
标准包装: 260
功能: 控制器
RF 型: 通用
次要属性: I²C 接口
封装/外壳: 48-VFQFN 裸露焊盘
包装: 托盘
其它名称: 1016-1473
XR18W750IL48-F-ND
XR18W750
WIRELESS UART CONTROLLER
REV. 1.0.0
4.0 UART INTERNAL REGISTERS
The internal registers of the UART are selected by address lines A2-A0 in the parallel mode. In the serial
mode, the UART registers are not accessible via these address lines. The 8051 microprocessor does not
access the enhanced UART in the parallel mode. The complete register set is shown on Table 7 and Table 8 .
T ABLE 7: UART INTERNAL REGISTERS
A DDRESS
A2 A1 A0
R EGISTER
R EAD /W RITE
C OMMENTS
16C550 C OMPATIBLE R EGISTERS
0 0 0
0 0 0
0 0 1
0 0 0
0 0 1
0 0 1
0 1 0
0 1 1
1 0 0
1 0 1
1 1 0
1 1 1
1 1 1
1 1 1
RHR - Receive Holding Register
THR - Transmit Holding Register
DLL - Divisor LSB
DLM - Divisor MSB
DREV - Device Revision Code
DVID - Device Identification Code
IER - Interrupt Enable Register
ISR - Interrupt Status Register
FCR - FIFO Control Register
LCR - Line Control Register
MCR - Modem Control Register
LSR - Line Status Register
MSR - Modem Status Register
SPR - Scratch Pad Register
FLVL - RX/TX FIFO Level Counter Register
EMSR - Enhanced Mode Select Register
Read-only
Write-only
Read/Write
Read/Write
Read-only
Read-only
Read/Write
Read-only
Write-only
Read/Write
Read/Write
Read-only
Read-only
Read/Write
Read-only
Write-only
LCR[7] = 0
LCR[7] = 1, LCR ≠ 0xBF
DLL, DLM = 0x00,
LCR[7] = 1, LCR ≠ 0xBF
LCR[7] = 0
LCR ≠ 0xBF
LCR ≠ 0xBF
LCR ≠ 0xBF, FCTR[6] = 0
LCR ≠ 0xBF, FCTR[6] = 1
E NHANCED R EGISTERS
0 0 0
TRG - RX/TX FIFO Trigger Level Register
FC - RX/TX FIFO Level Counter Register
Write-only
Read-only
0 0 1
0 1 0
1 X X
FCTR - Feature Control Register
EFR - Enhanced Function Register
Rsrvd
Read/Write
Read/Write
Read/Write
LCR = 0xBF
18
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