xr16v564 Exar Corporation, xr16v564 Datasheet - Page 24
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xr16v564
Manufacturer Part Number
xr16v564
Description
2.25v To 3.6v Quad Uart With 32-byte Fifo
Manufacturer
Exar Corporation
Datasheet
1.XR16V564.pdf
(55 pages)
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XR16V564/564D
2.25V TO 3.6V QUAD UART WITH 32-BYTE FIFO
Each UART channel in the V564 has its own set of configuration registers selected by address lines A0, A1
and A2 with a specific channel selected (See
Table 9
3.0 UART INTERNAL REGISTERS
A2,A1,A0 A
and
0
0
0
0
0
0
1
1
1
1
0
1
1
1
1
0
0 0
0 1
1 0
0 1
1 0
1 1
0 0
0 1
1 0
1 1
1 0
0 0
0 1
1 0
1 1
0 0
Table
DDRESSES
10.
T
ABLE
RHR - Receive Holding Register
THR - Transmit Holding Register
DLL - Divisor LSB
DLM - Divisor MSB
DLD - Divisor Fractional
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
EFR - Enhanced Function Reg
Xon-1 - Xon Character 1
Xon-2 - Xon Character 2
Xoff-1 - Xoff Character 1
Xoff-2 - Xoff Character 2
9: UART CHANNEL A AND B UART INTERNAL REGISTERS
16C550 C
R
EGISTER
E
NHANCED
Table 1
OMPATIBLE
24
R
and
EGISTERS
R
Table
EGISTERS
2). The complete register set is shown on
R
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read-only
Write-only
Read-only
Write-only
EAD
/W
RITE
LCR[7] = 1, LCR ≠ 0xBF
LCR = 0xBF
C
LCR[7] = 0
LCR[7] = 0
LCR[7] = 0
OMMENTS
REV. 1.0.1