xr16m2550 Exar Corporation, xr16m2550 Datasheet - Page 35

• Manufacturer Part Number: xr16m2550
• Description: High Performance Low Voltage Duart With 16-byte Fifo
• Manufacturer: Exar Corporation

REV. 1.0.2
I/O SIGNALS
REGISTERS
DLM, DLL
RXRDY#
TXRDY#
XOFF1
XOFF2
XON1
XON2
OP2#
RTS#
DTR#
MCR
RHR
MSR
DLD
THR
FCR
LCR
SPR
EFR
LSR
IER
ISR
INT
TX
T
ABLE
15: UART RESET CONDITIONS FOR CHANNEL A AND B
DLM = 0x00 and DLL = 0x01. Only resets to these values during a power up.
They do not reset when the Reset Pin is asserted.
Bits 7-0 = 0x00
Bits 7-0 = 0xXX
Bits 7-0 = 0xXX
Bits 7-0 = 0x00
Bits 7-0 = 0x00
Bits 7-0 = 0x01
Bits 7-0 = 0x00
Bits 7-0 = 0x00
Bits 7-0 = 0x60
Bits 3-0 = Logic 0
Bits 7-4 = Logic levels of the inputs inverted
Bits 7-0 = 0xFF
Bits 7-0 = 0x00
Bits 7-0 = 0x00
Bits 7-0 = 0x00
Bits 7-0 = 0x00
Bits 7-0 = 0x00
HIGH
HIGH
HIGH
HIGH
HIGH
LOW
Three-State Condition
HIGH PERFORMANCE LOW VOLTAGE DUART WITH 16-BYTE FIFO
35
RESET STATE
RESET STATE
XR16M2550