参数资料
型号: XR17C158CV-0A-EVB
厂商: Exar Corporation
文件页数: 15/67页
文件大小: 0K
描述: EVAL BOARD FOR XR17C158-A 144TQF
标准包装: 1
系列: *
XR17C158
xr
5V PCI BUS OCTAL UART
REV. 1.4.3
22
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 tri-state control. A logic 0 (default) sets the output to active level per register MPIO3T setting, 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.
MPIO6
MPIO7
MPIO5 MPIO4 MPIO3 MPIO2 MPIO1 MPIO0
MPIOLVL Register
Multipurpose Output Level Control
Bit-7 Bit-6 Bit-5 Bit-4 Bit-3 Bit-2 Bit-1 Bit-0
MPIO6
MPIO7
MPIO5 MPIO4 MPIO3 MPIO2 MPIO1 MPIO0
MPIO3T Register
Multipurpose Output 3-state Enable
Bit-7 Bit-6 Bit-5 Bit-4 Bit-3 Bit-2 Bit-1 Bit-0
MPIO6
MPIO7
MPIO5 MPIO4 MPIO3 MPIO2 MPIO1 MPIO0
MPIOINV Register
Multipurpose Input Signal Inversion Enable
Bit-7 Bit-6 Bit-5 Bit-4 Bit-3 Bit-2 Bit-1 Bit-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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