tmp88cs43fg TOSHIBA Semiconductor CORPORATION, tmp88cs43fg Datasheet - Page 142

• Manufacturer Part Number: tmp88cs43fg
• Description: 8 Bit Microcontroller Tlcs-870/x Series
• Manufacturer: TOSHIBA Semiconductor CORPORATION

driver)
13. Motor Control Circuit (PMD: Programmable motor
SDREG
6 to 0
Figure 13-5 Position Detection Sampling Timing with the PWMON Period Selected
SDREG
Figure 13-6 Detection Timing of the Position Detection Position
CASE1
CASE2
CASE3
CASE4
EMEM: Detects when a position detection match has occurred (the value is held aftr position detection).
PWM
Number of position
detection matches
(n = 5)
Match
WM
Sampling delay
(Check on whether sampling has started on the previous pulse)
ON
OFF
ON
OFF
EMEM value
(Sampling start)
Match
0
11
Erroneous
detection
Set a time for which to stop sampling in order to prevent erroneous detection due to noise
that occurs immediately after PWM output turns on (immediately after the transistor turns
on). (Figure 13-5)
1
0
0
1
Page 132
01
Sampling period
Sampling pause
Sampling delay
Position detection
match
PWMON period
2
1
1
0
0
3
10
00
A match with n = 5 means that it has
started on the previous pulse.
4
5
01
00
10
11
Align the arrow to the start
of counter switching.
0
TMP88CS43FG