tmp88ch41ug TOSHIBA Semiconductor CORPORATION, tmp88ch41ug Datasheet - Page 124

• Manufacturer Part Number: tmp88ch41ug
• Description: 8 Bit Microcontroller Tlcs-870/x Series
• Manufacturer: TOSHIBA Semiconductor CORPORATION

driver)
14. Motor Control Circuit (PMD: Programmable motor
SDREG
6 to 0
Figure 14-5 Position Detection Sampling Timing with the PWMON Period Selected
SDREG
Figure 14-6 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).
WM
PWM
Number of position
detection matches
(n = 5)
Match
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 14-5)
1
0
0
1
Page 114
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
TMP88FH41UG