101-0521 Rabbit Semiconductor, 101-0521 Datasheet - Page 131
![no-image](/images/no-image-200.jpg)
101-0521
Manufacturer Part Number
101-0521
Description
MODULE RABBITCORE RCM3210
Manufacturer
Rabbit Semiconductor
Datasheet
1.20-101-1217.pdf
(138 pages)
Specifications of 101-0521
Module/board Type
MPU Core Module
For Use With/related Products
RCM3210
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Other names
101-521
101-521
101-521
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The Quadrature Decoder generates an interrupt when the counter increments from 0x00 to
0x01 or when the counter decrements from 0x00 to 0xFF. Note that the status bits in the
QDCSR are set coincident with the interrupt, and the interrupt (and status bits) are cleared
by reading the QDCSR.
User’s Manual
Quad Decode Control/Status
Register
7
(rd-only)
6
(rd-only)
5
4
(wr-only)
3
(rd-only)
2
(rd-only)
1
0
(wr-only)
Register Name
Bit
Bit
Table E-5. Quadrature Decoder Registers
QDCSR
0
1
0
1
0
0
1
0
1
0
1
0
0
1
Mnemonic
Value
Value
10010000 (0x90)
Quadrature Decoder 2 did not increment from 0xFF.
Quadrature Decoder 2 incremented from 0xFF to
0x00. This bit is cleared by a read of this register.
Quadrature Decoder 2 did not decrement from 0x00.
Quadrature Decoder 2 decremented from 0x00 to
0xFF. This bit is cleared by a read of this register
This bit always reads as zero.
No effect on the Quadrature Decoder 2.
Reset Quadrature Decoder 2 to 0x00, without
causing an interrupt.
Quadrature Decoder 1 did not increment from 0xFF.
Quadrature Decoder 1 incremented from 0xFF to
0x00. This bit is cleared by a read of this register.
Quadrature Decoder 1 did not decrement from 0x00.
Quadrature Decoder 1 decremented from 0x00 to
0xFF. This bit is cleared by a read of this register.
This bit always reads as zero.
No effect on the Quadrature Decoder 1.
Reset Quadrature Decoder 1 to 0x00, without
causing an interrupt.
Description
Description
Address
125
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