参数资料
型号: XR16M564IV-0A-EVB
厂商: Exar Corporation
文件页数: 17/55页
文件大小: 0K
描述: EVAL BOARD FOR XR16M564-A 64LQFP
标准包装: 1
系列: *
XR16M564/564D
24
1.62V TO 3.63V QUAD UART WITH 32-BYTE FIFO
REV. 1.0.0
3.0
UART INTERNAL REGISTERS
Each UART channel in the M564 has its own set of configuration registers selected by address lines A0, A1
and A2 with a specific channel selected (See Table 1 and Table 2). The complete register set is shown on
TABLE 9: UART CHANNEL A AND B 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 - Divisor LSB
Read/Write
LCR[7] = 1, LCR
≠ 0xBF
0
0 1
DLM - Divisor MSB
Read/Write
0
1 0
DLD - Divisor Fractional
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[7] = 0
1
0 1
LSR - Line Status Register
Read/Write
1
1 0
MSR - Modem Status Register
Read/Write
1
1 1
SPR - Scratch Pad Register
Read/Write
ENHANCED REGISTERS
0
1 0
EFR - Enhanced Function Reg
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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