CCU 3000, CCU 3000-I
CCU 3001, CCU 3001-I
Presc. in
ACCU_ clk
Stop
CO1
CO2
INTER
Presc. out
PIN
INT
D0...D7
CI
D0...D7
PIN
Startbit
PIN PIN
LOAD
WR
WR
REACCU
LD OUT
IN
Reg
CO
1
CO
2
D
REACCU
C
Cl
LD
OUT
IN
LONG
CO2
CO2
CO1
CO1
RD
LATCH
IN1 OUT1
IN2 OUT2
PWM CO
serial clock
BUS REGISTER (ADDER REGISTER)
PIN
PIN
Presc.in
Presc.
out
latch clock
Serial Serial Serial Serial
IN OUT Mode IN 2 –11 –12
PIN
WR1RD1 WR2 RD2
open
SO PINOUT
from control word
D
Q
DSET Q
+
D0...D7
D
D
Q
Q
CLR
Q
CLR
CLR
Reset active
Fig. 2–16: Timer
Reset active
Startbit
Startbit generator
The three control registers control the internal switches of the timer:
Control register 1 Control register 2
bit 7
SERIAL_2
Second Serial Input
Level
00.. PIN
01.. fosc.
10.. Φ2
bit 7, 6
PIN_out
00.. open
01.. serial out
10.. PWM out
bit 6, 5
Clock
11..
carry accu D
bit 5, 4, 3
Read_Latch
000. open
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
001. carry accu C
010. carry accu D
011. PIN
bit 4
Stop
Start
bit 3, 2
100. PIN
101. prescaler output
110. prescaler input
00.. prescaler input
01.. prescaler output
10.. PIN
bit 2, 1
bit 0
accu clock
long
bit 1
bit 0
1/2 load
Edge detector
11.. PIN
0... open
1... falling
1... carry out accu C
carry in accu D
MICRONAS INTERMETALL
17
MICRONAS [ MICRONAS ]
