xr16c854iv Exar Corporation, xr16c854iv Datasheet - Page 40
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xr16c854iv
Manufacturer Part Number
xr16c854iv
Description
Quad Uart With Rx/tx Fifo Counters And 128-byte Fifo
Manufacturer
Exar Corporation
Datasheet
1.XR16C854IV.pdf
(54 pages)
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XR16C854/854D
2.97V TO 5.5V QUAD UART WITH 128-BYTE FIFO
T
I/O SIGNALS
REGISTERS
ABLE
RXRDY#
TXRDY#
XOFF1
XOFF2
FSTAT
EMSR
XON1
XON2
FCTR
DTR#
RTS#
MCR
FLVL
IRTX
IRQ#
DLM
RHR
MSR
TRG
THR
FCR
LCR
LSR
SPR
EFR
DLL
IER
ISR
INT
FC
TX
18: UART RESET CONDITIONS FOR CHANNELS A-D
Bits 7-0 = 0xXX
Bits 7-0 = 0xXX
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
Bits 7-0 = 0x00
Bits 7-0 = 0x00
Bits 7-0 = 0x00
Bits 7-0 = 0x00
Bits 7-0 = 0x00
Bits 7-0 = 0xFF
Logic 1
Logic 0
Logic 1
Logic 1
Logic 1
Logic 0
XR16C854 = Three-State Condition
XR16C854D = Logic 0
Logic 1 (68 mode, INTSEL = 0)
40
RESET STATE
RESET STATE
xr
REV. 3.0.1