XR16L2450 Datasheet, PDF (20/30 Pages) Exar Corporation – 2.25V TO 5.5V DUART

XR16L2450
2.25V TO 5.5V DUART
xr
REV. 1.1.0
TABLE 8: UART RESET CONDITIONS FOR CHANNEL A AND B
REGISTERS
RESET STATE
DLM
Bits 7-0 = 0xXX
DLL
Bits 7-0 = 0xXX
RHR
Bits 7-0 = 0xXX
THR
Bits 7-0 = 0xXX
IER
Bits 7-0 = 0x00
ISR
Bits 7-0 = 0x01
LCR
Bits 7-0 = 0x00
MCR
Bits 7-0 = 0x00
LSR
Bits 7-0 = 0x60
MSR
Bits 3-0 = Logic 0
Bits 7-4 = Logic levels of the inputs
inverted
SPR
Bits 7-0 = 0xFF
I/O SIGNALS
RESET STATE
TX
Logic 1
OP2#
Logic 1
RTS#
Logic 1
DTR#
Logic 1
INT
Three-State Condition
20