XR17D154IV Exar Corporation, XR17D154IV Datasheet - Page 51

• Manufacturer Part Number: XR17D154IV
• Description: Universal QUART W/ PCI Bus Interface.
• Manufacturer: Exar Corporation

Specifications of XR17D154IV

• Features: *
• Number Of Channels: 4, QUART
• Fifo's: 64 Byte
• Protocol: RS485
• Voltage - Supply: 3.3V, 5V
• With Auto Flow Control: Yes
• With Irda Encoder/decoder: Yes
• With False Start Bit Detection: Yes
• With Modem Control: Yes
• Mounting Type: Surface Mount
• Package / Case: 144-LQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS Compliant

xr
REV. 1.2.2
I/O SIGNALS
DTR#[ch-3:0]
REGISTERS
RTS#[ch-3:0]
TX[ch-3:0]
RXTRG
XCHAR
TXTRG
RXCNT
TXCNT
XOFF1
XOFF2
XON1
XON2
EECK
EECS
FCTR
MCR
EEDI
RHR
MSR
DLM
THR
FCR
LCR
SPR
EFR
LSR
DLL
IER
ISR
T
ABLE
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
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
HIGH (if ENIR pin = LOW)
LOW (if ENIR pin = HIGH)
HIGH
HIGH
LOW
LOW
LOW
20: UART RESET CONDITIONS
51
UNIVERSAL (3.3V AND 5V) PCI BUS QUAD UART
RESET STATE
RESET STATE
XR17D154