tmp89fm82t TOSHIBA Semiconductor CORPORATION, tmp89fm82t Datasheet - Page 306

• Manufacturer Part Number: tmp89fm82t
• Description: 8 Bit Microcontroller
• Manufacturer: TOSHIBA Semiconductor CORPORATION

19.3
Position Detection Unit
(0x0EC0)
(0x0EC3)
PDCRA
SDREG
Note:Read-modify-write instructions, such as a bit manipulation instruction, cannot access the PDCRA because it
Note:When changing setting, keep the PDCEN bit reset to “0” (disable position detection function).
contains a write only bit.
7 to 0
SWSTP
7
6
5
4
3
2
1
0
D7
7
7
SWSTP
SWSTT
SPTM3
STTM2
PDNUM
RCEN
DTMD
PDCEN
SDREG
SWSTT
D6
6
6
SPTM3
Stop sampling in software
Start sampling in software
Stop sampling using Timer 3
Start sampling using Timer 2
Number of position signal input
pins
Recount occurrences of match-
ing when PWM is on
Position detection mode
Enable/Disable position detec-
tion function
Sampling delay
D5
5
5
STTM2
D4
4
4
PDNUM
D3
3
3
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0: No operation
1: Stop sampling
0: No operation
1: Start sampling
0: Disable
1: Enable
0: Disable
1: Enable
0: Compare three pins (PDU/PDV/PDW)
1: Compare one pin (PDU) only
0: Continue counting from previously PWM on
1: Recount each time PWM turns on
0: Ordinary mode
1: Unmatch detection mode
0: Disable
1: Enable (Sampling starts)
SDREG × 2/fcgck (resolution 250 ns at fcgck = 8 MHz)
RCEN
D2
2
2
DTMD
D1
1
1
PDCEN
D0
0
0
(Initial value: 0000 0000)
(Initial value: 0000 0000)
TMP89FM82T
R/W
R/W
W