Rabbit RabbitCore RCM3100 User Manual page 105

Distributor of Digi International: Excellent Integrated System Limited
Datasheet of 101-0533 - KIT DEV RABBIT3000/RCM3100
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Table E-5. Quadrature Decoder Registers (continued)
Register Name
Quad Decode Control
Register
Bit
7:6
5:4
3:2
1:0
Quad Decode Count Register
Bit(s)
7:0
98
Mnemonic
QDCR Address = 10010001 (0x91)
Value
Disable Quadrature Decoder 2 inputs. Writing a new
0x value to these bits will not cause Quadrature
Decoder 2 to increment or decrement.
Quadrature Decoder 2 inputs from Port F bits 3 and
10
2.
Quadrature Decoder 2 inputs from Port F bits 7 and
11
6.
xx These bits are ignored.
Disable Quadrature Decoder 1 inputs. Writing a new
0x value to these bits will not cause Quadrature
Decoder 1 to increment or decrement.
Quadrature Decoder 1 inputs from Port F bits 1 and
10
0.
Quadrature Decoder 1 inputs from Port F bits 5 and
11
4.
0 Quadrature Decoder interrupts are disabled.
Quadrature Decoder interrupt use Interrupt Priority
1
1.
Quadrature Decoder interrupt use Interrupt Priority
10
2.
Quadrature Decoder interrupt use Interrupt Priority
11
3.
QDC1R Address = 10010100 (0x94)
(QDC2R) Address = 10010110 (0x96)
Value
The current value of the Quadrature Decoder
read
counter is reported.
Address
Description
Description
RabbitCore RCM3100