參數(shù)資料
型號: XR17D152CM-0A-EVB
廠商: Exar Corporation
文件頁數(shù): 14/68頁
文件大?。?/td> 0K
描述: EVAL BOARD FOR XR17D152 100TQFP
標(biāo)準(zhǔn)包裝: 1
系列: *
á
XR17D152
REV. 1.2.0
UNIVERSAL (3.3V AND 5V) PCI BUS DUAL UART
21
MPIOLVL [7:0] (default 0x00)
Output pin level control and input level status. The status of the input pin(s) is read on this register and output
pins are controlled on this register. A logic 0 (default) sets the output to low and a logic 1 sets the output pin to
high. The MPIO interrupt will clear upon reading this register.
MPIO3T [7:0] (default 0x00)
Output pin three-state control. A logic 0 (default) sets the output to active level per register MPIOBIT settling, a
logic 1 sets the output pin to tri-state.
MPIOINV [7:0] (default 0x00)
Input inversion control. A logic 0 (default) does not invert the input pin logic. A logic 1 inverts the input logic
level.
MPIOSEL [7:0] (default 0xFF)
Multipurpose input/output pin select. This register defines the functions of the pins. A logic 1 (default) defines
the pin for input and a logic 0 for output.
MP IO 6
MP IO 7
MP IO 5 MP IO 4 MP IO 3 MP IO 2 MP IO 1 MP IO 0
M P IO LV L Register
M ultipurpos e O utput Level C ontrol
B it-7 B it-6
B it-5
B it-4
B it-3
B it-2
B it-1 B it-0
MP IO 6
MP IO 7
MP IO 5 MP IO 4 MP IO 3 MP IO 2 MP IO 1 MP IO 0
M P IO 3T Register
M ultipurpose O utput 3-state E n able
B it-7 B it-6
B it-5
B it-4
B it-3
B it-2
B it-1 B it-0
MP IO 6
MP IO 7
MP IO 5 MP IO 4 MP IO 3 MP IO 2 MP IO 1 MP IO 0
M P IO INV Register
M ultipurpose Input S ignal Inversion E nable
B it-7 B it-6
B it-5
B it-4
B it-3
B it-2
B it-1 B it-0
MPIO6
MPIO7
MPIO5 MPIO4 MPIO3 MPIO2 MPIO1 MPIO0
MPIOSEL Register
Multipurpose Input/Output Selection
Bit-7 Bit-6
Bit-5
Bit-4
Bit-3
Bit-2
Bit-1
Bit-0
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