XR16V698 Datasheet, PDF (47/58 Pages) Exar Corporation – 2.25V TO 3.6V HIGH PERFORMANCE OCTAL UART WITH 32-BYTE FIFO

REV. 1.0.3
XR16V698
2.25V TO 3.6V HIGH PERFORMANCE OCTAL UART WITH 32-BYTE FIFO
REGISTERS
DLL
DLM
DLD
RHR
THR
IER
FCR
ISR
LCR
MCR
LSR
MSR
SPR
FCTR
EFR
TFCNT
TFTRG
RFCNT
RFTRG
XCHAR
XON1
XON2
XOFF1
XOFF2
TABLE 18: UART RESET CONDITIONS
RESET STATE
I/O SIGNALS
Bits 7-0 = 0x01
TX[7:0]
Bits 7-0 = 0x00
IRTX[7:0]
Bits 7-0 = 0x00
RTS#[7:0]
Bits 7-0 = 0xXX
DTR#[7:0]
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
Bits 7-0 = 0xFF
Bits 7-0 = 0x00
Bits 7-0 = 0x00
Bits 7-0 = 0x00
Bits 7-0 = 0x00
Bits 7-0 = 0x00
Bits 7-0 = 0x00
Bits 7-0 = 0x00
Bits 7-0 = 0x00
Bits 7-0 = 0x00
Bits 7-0 = 0x00
Bits 7-0 = 0x00
RESET STATE
HIGH
LOW
HIGH
HIGH
47