tmp89fm82t TOSHIBA Semiconductor CORPORATION, tmp89fm82t Datasheet - Page 3

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

Considerations for using Motor Control Circuit
resisters.
(PMD:Programmable Motor Driver)
Following considerations are necessary for writing data to electrical lead angle timer (ELDEG) and reading 2 bytes
1. Writing data to electrical lead angle timer (ELDEG)
2. Reading 2 bytes resisters
operating, there is a case that counter value may not clear.
erating, there is a case that non proper value is read.
・ Do not write 0x017F(383) to ELDEG resister during up count operation.
・ Do not write 0x0000 to ELDEG resister during down count operation.
・ MCAP, EDCAP
・ COMPU, COMPV, COMPW
・ MDCNT
・ ELDEG
In case of writing the maximum data 0x017F and the minimum data 0x0000 to electrical angle timer during
In case of reading 2 bytes resister (MCAP,CMPU,CMPV,CMPW,MDCNT,EDCAP,ELDEG) during op-
The following consideration is needed for reading each resister.
Read before next INTPDC (Position Detect interrupt).
Read the resisters during operation stop (EDCRB<CALCBSY>=0)
Read MDCNT resister after PWM waveform generation circuit stop (MDCRA<PWMEN>=0).
Read ELDEG resister two or more times and compare them with expected data
TMP89FM82T