XR17V358 Datasheet, PDF (16/68 Pages) Exar Corporation – HIGH PERFORMANCE OCTAL PCI EXPRESS UART

XR17V358
PRELIMINARY
HIGH PERFORMANCE OCTAL PCI EXPRESS UART
REV. P1.0.2
TABLE 4: XR17V358 UART AND DEVICE CONFIGURATION REGISTERS
OFFSET ADDRESS
MEMORY SPACE
0x0000 - 0x000F UART channel 0 Regs
READ/WRITE
COMMENT
(Table 13 & First 8 regs are 16550 compatible
Table 14)
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 13 & First 8 regs are 16550 compatible
Table 14)
(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
0x0800 - 0x080F UART channel 2 Regs
0x0810 - 0x087F Reserved
0x0880 - 0x089A DEVICE CONFIGURATION REGISTERS
0x089B - 0x08FF Reserved
0x0900 - 0x09FF UART 2 – Read FIFO
0x0900 - 0x09FF UART 2 – Write FIFO
0x0A00 - 0x0BFF UART 2 – Read FIFO with errors
(Table 13 & First 8 regs are 16550 compatible
Table 14)
(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
0x0C00 - 0x0C0F UART channel 3 Regs
0x0C10 - 0x0C7F Reserved
0x0C80 - 0x0C9A DEVICE CONFIGURATION REGISTERS
0x0C9B - 0x0CFF Reserved
0x0D00 - 0x0DFF UART 3 – Read FIFO
0x0D00 - 0x0DFF UART 3 – Write FIFO
0x0E00 - 0x0FFF UART 3 – Read FIFO with errors
(Table 13 & First 8 regs are 16550 compatible
Table 14)
(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
16