XR20M1170G16-0B Datasheet, PDF (40/56 Pages) Exar Corporation – I2C/SPI UART WITH 64-BYTE FIFO

XR20M1170
I2C/SPI UART WITH 64-BYTE FIFO
REV. 1.1.0
TABLE 16: UART RESET STATES
REGISTERS
DLM, DLL
DLD
RHR
THR
IER
FCR
ISR
LCR
MCR
LSR
MSR
SPR
TCR
TLR
TXLVL
RXLVL
IODir
IOState
IOIntEna
IOCont
EFCR
EFR
XON1
XON2
XOFF1
XOFF2
I/O SIGNALS
TX
RTS#
DTR#
IRQ#
RESET STATE
DLM = 0x00 and DLL = 0x01^[1]
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 = 0x1D
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^[1]
Bits 7-0 = 0x0F
Bits 7-0 = 0x00
Bits 7-0 = 0x40
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^[1]
Bits 7-0 = 0x00^[1]
Bits 7-0 = 0x00^[1]
Bits 7-0 = 0x00^[1]
RESET STATE
HIGH
HIGH
HIGH
HIGH
NOTE: [1] Only resets to these values during a power up. They do not reset when the RESET# pin is asserted or during
software reset IOCont[3] = 1.
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