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參數資料
型號: XR17V254IV-F
廠商: Exar Corporation
文件頁數: 6/70頁
文件大?。?/td> 0K
描述: IC UART PCI BUS QUAD 144LQFP
標準包裝: 60
特點: *
通道數: 4,QUART
FIFO's: 64 字節(jié)
規(guī)程: RS485
電源電壓: 3.3V,5V
帶自動流量控制功能:
帶IrDA 編碼器/解碼器:
帶故障啟動位檢測功能:
帶調制解調器控制功能:
安裝類型: 表面貼裝
封裝/外殼: 144-LQFP
供應商設備封裝: 144-LQFP(20x20)
包裝: 托盤
XR17V254
14
66MHZ PCI BUS QUAD UART WITH POWER MANAGEMENT SUPPORT
REV. 1.0.1
TABLE 5: XR17V254 UART AND DEVICE CONFIGURATION REGISTERS
OFFSET ADDRESS
MEMORY SPACE
READ/WRITE
DATA WIDTH
COMMENT
0x000 - 0x00F
UART channel 0 Regs
(
8/16/24/32
First 8 regs are 16550 compatible
0x010 - 0x07F
Reserved
0x080 - 0x093
DEVICE CONFIGURA-
TION REGISTERS
8/16/24/32
0x094 - 0x0FF
Reserved
0x100
UART 0 – Read FIFO
Read-Only
8/16/24/32
64 bytes of RX FIFO data
0x100
UART 0 – Write FIFO
Write-Only
8/16/24/32
64 bytes of TX FIFO data
0x140 - 0x17F
Reserved
0x180 - 0x1FF
UART 0 – Read FIFO
with errors
Read-Only
16/32
64 bytes of RX FIFO data + LSR
0x200 - 0x20F
UART channel 1 Regs
(
8/16//24/32
First 8 regs are 16550 compatible
0x210 - 0x2FF
Reserved
0x300
UART 1 – Read FIFO
Read-Only
8/16/24/32
64 bytes of RX FIFO data
0x300
UART 1 – Write FIFO
Write-Only
8/16/24/32
64 bytes of TX FIFO data
0x340 - 0x37F
Reserved
0x380 - 0x3FF
UART 1 – Read FIFO
with errors
Read-Only
16/32
64 bytes of RX FIFO data + LSR
0x400 - 0x40F
UART channel 2 Regs
(
8/16/24/32
First 8 regs are 16550 compatible
0x410 - 0x4FF
Reserved
0x500
UART 2 – Read FIFO
Read-Only
8/16/24/32
64 bytes of RX FIFO data
0x500
UART 2 – Write FIFO
Write-Only
8/16/24/32
64 bytes of TX FIFO data
0x540 - 0x57F
Reserved
0x580 - 0x5FF
UART 2 – Read FIFO
with errors
Read-Only
16/32
64 bytes of RX FIFO data + LSR
0x600 - 0x60F
UART channel 3 Regs
(
8/16/24/32
First 8 regs are 16550 compatible
0x610 - 0x6FF
Reserved
0x700
UART 3 – Read FIFO
Read-Only
8/16/24/32
64 bytes of RX FIFO data
0x700
UART 3 – Write FIFO
Write-Only
8/16/24/32
64 bytes of TX FIFO data
0x740 - 0x77F
Reserved
0x780 - 0x7FF
UART 3 – Read FIFO
with errors
Read-Only
16/32
64 bytes of RX FIFO data + LSR
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