668-0011 Rabbit Semiconductor, 668-0011 Datasheet - Page 192

• Manufacturer Part Number: 668-0011
• Description: IC MPU RABIT3000A 55.5MHZ128LQFP
• Manufacturer: Rabbit Semiconductor

Specifications of 668-0011

• Rohs Status: RoHS non-compliant
• Processor Type: Rabbit 3000 8-Bit
• Speed: 55.5MHz
• Voltage: 2.5V, 2.7V, 3V, 3.3V
• Mounting Type: Surface Mount
• Package / Case: 128-LQFP
• Features: -
• Other names: 316-1043

21.4 Register Descriptions
182
(Write-
(Write-
(Read-
(Read-
(Read-
(Read-
Bit(s)
only)
only)
only)
only)
only)
only)
Quad Decode Control/Status Register
7
6
5
4
3
2
1
0
Value
0
1
0
1
0
1
0
1
0
1
0
1
Quadrature Decoder 2 did not increment from 0xFF (0x3FF in 10-bit mode).
Quadrature Decoder 2 incremented from 0xFF (0x3FF in 10-bit mode) to 0x00.
This bit is cleared by a read of his register.
Quadrature Decoder 2 did not decrement from 0x00.
Quadrature Decoder 2 decremented from 0x00 to 0xFF (0x3FF in 10-bit mode).
This bit is cleared by a read of this register.
This bit always reads as zero.
No effect on Quadrature Decoder 2.
Reset Quadrature Decoder 2 to 0x00 without causing an interrupt.
Quadrature Decoder 1 did not increment from 0xFF (0x3FF in 10-bit mode).
Quadrature Decoder 1 incremented from 0xFF (0x3FF in 10-bit mode) 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 (0x3FF in 10-bit mode).
This bit is cleared by a read of this register.
This bit always reads as zero.
No effect on Quadrature Decoder 1.
Reset Quadrature Decoder 1 to 0x00 without causing an interrupt.
(QDCSR)
Description
Rabbit 3000 Microprocessor User’s Manual
(Address = 0x0090)