XR17D152 Datasheet, PDF (13/68 Pages) Exar Corporation – UNIVERSAL (3.3V AND 5V) PCI BUS DUAL UART

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REV. 1.2.0
XR17D152
UNIVERSAL (3.3V AND 5V) PCI BUS DUAL UART
TABLE 3: DEVICE CONFIGURATION REGISTERS SHOWN IN BYTE ALIGNMENT
ADDRESS
[A7:A0]
REGISTER
READ/WRITE COMMENT
RESET STATE
Ox08A
Ox08B
RESET
SLEEP
Write-only Self clear bits after executing Reset [1:0]
Read/Write Sleep mode [1:0]
Bits 7-0 = 0x00
Bits 7-0 = 0x00
Ox08C
Ox08D
Ox08E
Ox08F
DREV
DVID
REGB
MPIOINT
Read-only Device revision
Read-only Device identification
Read/Write
Read/Write MPIO interrupt mask
Bits 7-0 = 0x02
Bits 7-0 = 0x22
Bits 7-0 = 0x00
Bits 7-0 = 0x00
Ox090
Ox091
Ox092
Ox093
MPIOLVL
MPIO3T
MPIOINV
MPIOSEL
Read/Write MPIO level control
Read/Write MPIO output control
Read/Write MPIO input polarity select
Read/Write MPIO select
Bits 7-0 = 0x00
Bits 7-0 = 0x00
Bits 7-0 = 0x00
Bits 7-0 = 0xFF
ADDRESS
0x080-083
0x084-087
0x088-08B
0x08C-08F
0x090-093
TABLE 4: DEVICE CONFIGURATION REGISTERS SHOWN IN DWORD ALIGNMENT
REGISTER
BYTE 3 [31:24] BYTE 2 [23:16] BYTE 1 [15:8]
INTERRUPT (read-only)
INT3
INT2
INT1
TIMER (read/write)
TIMERMSB
TIMERLSB
TIMER
(reserved)
ANCILLARY1 (read/write)
SLEEP
RESET
REGA
(reserved)
ANCILLARY2 (read-only)
MPIOINT
REGB
DVID
MPIO (read/write)
MPIOSEL
MPIOINV
MPIO3T
BYTE 0 [7:0]
INT0
TIMERCNTL
8XMODE
DREV
MPIOLVL
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