XR17D154 Exar Corporation, XR17D154 Datasheet - Page 48
XR17D154
Manufacturer Part Number
XR17D154
Description
Four-channel Pci-bus Uart
Manufacturer
Exar Corporation
Datasheet
1.XR17D154.pdf
(61 pages)
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PRELIMINARY
I/O SIGNALS
DTR#[ch-3:0]
REGISTERS
RTS#[ch-3:0]
IRTX[ch-3:0]
T
TX[ch-3:0]
ABLE
RXCNT
RXTRG
XCHAR
TXCNT
TXTRG
XOFF1
XOFF2
FCTR
XON1
XON2
EECK
EECS
EEDI
RHR
MCR
MSR
DLM
THR
FCR
SPR
LCR
LSR
EFR
DLL
IER
ISR
18: UART[3:0] RESET CONDITIONS
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
Logic 1
Logic 0
Logic 1
Logic 1
Logic 0
Logic 0
Logic 0
48
UNIVERSAL (3.3V AND 5V) PCI BUS QUAD UART
RESET STATE
RESET STATE
XR17D154
REV. P1.0.0
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