XR17V352 Datasheet, PDF (14/64 Pages) Exar Corporation – HIGH PERFORMANCE DUAL PCI EXPRESS UART

XR17V352
PRELIMINARY
HIGH PERFORMANCE DUAL PCI EXPRESS UART
REV. P1.0.1
TABLE 4: XR17V352 UART AND DEVICE CONFIGURATION REGISTERS
OFFSET ADDRESS
MEMORY SPACE
0x0000 - 0x000F UART channel 0 Regs
READ/WRITE
COMMENT
(Table 12 & First 8 regs are 16550 compatible
Table 13)
0x0010 - 0x007F Reserved
0x0080 - 0x009A DEVICE CONFIGURATION REGISTERS
0x009B - 0x00FF Reserved
0x0100 - 0x01FF UART 0 – Read FIFO
0x0100 - 0x01FF UART 0 – Write FIFO
0x0200 - 0x03FF UART 0 – Read FIFO with errors
(Table 5)
Read-Only 256 bytes of RX FIFO data
Write-Only 256 bytes of TX FIFO data
Read-Only 256 bytes of RX FIFO data + LSR
0x0400 - 0x040F UART channel 1 Regs
0x0410 - 0x047F Reserved
0x0480 - 0x049A DEVICE CONFIGURATION REGISTERS
0x049B - 0x04FF Reserved
0x0500 - 0x05FF UART 1 – Read FIFO
0x0500 - 0x05FF UART 1 – Write FIFO
0x0600 - 0x07FF UART 1 – Read FIFO with errors
(Table 12 & First 8 regs are 16550 compatible
Table 13)
(Table 5)
Read-Only 256 bytes of RX FIFO data
Write-Only 256 bytes of TX FIFO data
Read-Only 256 bytes of RX FIFO data + LSR
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