Rev. 1.0, 02/00, page 662 of 1141
26.11.2
Block Diagram
Data bus
Accumulator
End
Start
Error latch signal
Error data
(from the error detector)
Motor control data
(to PWM circuit)
Buffer/
register
select &
R/W
Address bus
Error check
Accumulation
controller
LA (16 bits),
lower accumulator
UA (32 bits),
upper accumulator
MD (32 bits),
multiplied data
Data
shifter
Accumulation
sequence circuit
Buffer circuit
A, B, G, etc.
Write-only
Read-only
Accumu-
lator
Calculation buffer Coefficient register Constant register
Sign
controller
Figure 26.38 Block Diagram of Digital Filter Circuit