CCU3000 Datasheet, PDF (16/77 Pages) Micronas – Central Control Unit

CCU 3000, CCU 3000-I
CCU 3001, CCU 3001-I
Apart from the start values for the counter and adder reg-
isters, three control registers shift the timer into the
preselected function.
Registers to control the timer:
2 bytes
2 bytes
2 bytes
3 bytes
prescaler high and low byte (read/write)
(read: prescaler)
(write: prescaler and reload register)
accu high and low byte (write)
(write: accu and reload register)
adder register high and low byte
(read/write)
control register 1 to 3 (write)
EDGE + _D
Q
CLR ^Q
1/2 LOAD
START
D⁺
Q
CLR
STOP
+
fosc
Φ2
CLOCK
+_D
Q
CLR
D0...D7
D0...D7
WR
REACCU
CI A ^CO
LOAD
LSB IN MSB
WR
REACCU
CI
B CO
LOAD
LSB IN MSB
+
PIN PIN
STOP
Fig. 2–15: Prescaler timer, start/stop logic
16
Presc. in
Presc. out
MICRONAS INTERMETALL