CCU3000 Datasheet, PDF (17/77 Pages) Micronas – Central Control Unit

Presc. in
ACCU_ clk
Presc. out
PIN
PIN
Reg
LOAD
CO1
CO2
CCU 3000, CCU 3000-I
CCU 3001, CCU 3001-I
Stop
CO 1
CO 2
D0...D7
D0...D7
Startbit
WR
CI
CO
REACCU C 1
LD _{OUT IN}
LONG
WR
Cl REACCU
LD OUT IN
D
CO
2
INTER
INT
PIN PIN
CO1
PIN
PIN
Presc.in
Presc.
out
CO2
RD
LATCH
open
Q
D
Q
D⁺
Q CLR
CLR
Reset active
Fig. 2–16: Timer
IN1 OUT1
IN2 OUT2
serial clock _{BUS REGISTER (ADDER REGISTER)}
latch clock
Serial Serial Serial Serial
WR1 RD1 WR2 RD2 IN OUT Mode IN 2 –11 –12
PWM CO
PIN
D0...D7
from control word
SO PINOUT
DQ
DSET Q
CLR
Startbit Startbit generator
Reset active
The three control registers control the internal switches of the timer:
Control register 1
Control register 2
bit 7
bit 6, 5
bit 4
bit 3, 2
bit 1
bit 0
SERIAL_2
Clock
Stop
Start
1/2 load
Edge detector
Second Serial Input
Level
00.. PIN
01.. fosc.
10.. Φ2
11.. disable clock
0... stop disabled
1... carry out accu
00.. always active
01.. edge
10.. PIN
11.. PIN
0... disabled
1... active
0... rising
1... falling
MICRONAS INTERMETALL
bit 7, 6
PIN_out
bit 5, 4, 3 Read_Latch
bit 2, 1
accu clock
bit 0
long
00.. open
01.. serial out
10.. PWM out
11.. carry accu D
000. open
001. carry accu C
010. carry accu D
011. PIN
100. PIN
101. prescaler output
110. prescaler input
00.. prescaler input
01.. prescaler output
10.. PIN
11.. PIN
0... open
1... carry out accu C
carry in accu D
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