tmp88ch40img TOSHIBA Semiconductor CORPORATION, tmp88ch40img Datasheet - Page 79

• Manufacturer Part Number: tmp88ch40img
• Description: 8 Bit Microcontroller
• Manufacturer: TOSHIBA Semiconductor CORPORATION

11.4 Timer Unit
fc/4
this counter, it can generate three types of timer interrupts (INTTMR1 to 3). These timer interrupts may be used to
produce a commutation trigger, position detection start trigger, etc. Also, the mode timer has a capture function
which automatically captures register data in synchronism with position detection or overload protection. This cap-
ture function allows motor revolutions to be calculated by measuring position detection intervals.
The timer unit has an up counter (mode timer) which is cleared by a position detection interrupt (INTPDC). Using
selector
lock
3
7, 6, 5 4, 3, 2, 1
MT RA
Mode timer
Figure 11-7 Timer Circuit Configuration
Mode capture register
0
Timer compare register
Mode timer control registers
4
M AP
Overflow
F to 0
F to 0
F to 0
F to 0
MP1
MP2
MP3
control circuit
Timer reset
Page 71
7
comparison
comparison
comparison
magnitude
matching
matching
Timer 1
Timer 2
Timer 3
5
MT RB
control circuit
3, 2, 1
apture
3
apture
apture overwrite
Debug output
Timer 1 interrupt
INTTMR1
( ommutation)
Timer 2 interrupt
INTTMR2
(Position detection start)
Timer 3 interrupt
INTTMR3
(Overflow)
Overload protective
interrupt INT LM
Position detection
interrupt INTPD
TMP88CH40IMG