XR17C158 Exar Corporation, XR17C158 Datasheet - Page 12

• Manufacturer Part Number: XR17C158
• Description: Eight-channel Pci-based (UART)
• Manufacturer: Exar Corporation

PRELIMINARY
0xA00 - 0xA0F
0xA10 - 0xAFF
0xB00
0xB00
0xB40 - 0xB7F
0xB80
0xC00 - 0xC0F
0xC10 - 0xCFF
0xD00
0xD00
0xD40 - 0xD7F
0xD80
0xE00 - 0xE0F
0xE10 - 0xEFF
0xF00
0xF00
0xF40 - 0xF7F
0xF80
O
FFSET
A
DDRESS
UART channel 5 Regs
Reserved
UART 5 – Read FIFO
UART 5 – Write FIFO
Reserved
UART 5 – Read FIFO
with errors
UART channel 6 Regs
Reserved
UART 6 – Read FIFO
UART 6 – Write FIFO
Reserved
UART 6 – Read FIFO
with errors
UART channel 7 Regs
Reserved
UART 7 – Read FIFO
UART 7 – Write FIFO
Reserved
UART 7 – Read FIFO
with errors
M
EMORY
T
ABLE
S
PACE
2: XR17C158 D
(Table 10 & 11)
(Table 10 & 11)
(Table 10 & 11)
R
Read-Only
Read-Only
Write-Only
Read-Only
Write-Only
Read-Only
Read-Only
Write-Only
Read-Only
EAD
EVICE
ite
/W
RITE
12
C
ONFIGURATION
D
8/16/24/32
8/16/24/32
8/16/24/32
8/16/24/32
8/16/24/32
8/16/24/32
8/16/24/32
8/16/24/32
8/16/24/32
ATA
16/32
16/32
16/32
PCI BUS OCTAL UART
W
IDTH
R
EGISTERS
First 8 regs are 16550 compatible
64 bytes of TX FIFO data
First 8 regs are 16550 compatible
64 bytes of RX FIFO data
64 bytes of TX FIFO data
First 8 regs are 16550 compatible
64 bytes of TX FIFO data
64 bytes of RX FIFO data
64 bytes of RX FIFO data + LSR
64 bytes of RX FIFO data + LSR
64 bytes of RX FIFO data
64 bytes of RX FIFO data + LSR
C
OMMENT
XR17C158
REV. 1.0.0