tmp89fm82t TOSHIBA Semiconductor CORPORATION, tmp89fm82t Datasheet - Page 299

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

19.2
of the induced voltage or position sensor signal, a timer unit to generate events at three instances of electrical angle
timing, and a three-phase PWM output unit to produce three-phase output PWM waveforms. Also included are an
electrical angle timer unit to count degrees of electrical angle and a waveform arithmetic unit to calculate sine waveform
output duty cycles. There is the circuit in waveform arithmetic unit that operates by fx which is generated by PLL
circuit.
1.7.1 Input/Output Pins and Input/output Control registers.
Note 1: Always use the LDW instruction to set data in 16-bit data registers.
Note 2: The internal EMG circuit is enabled initially . Therefore, it is necessary to fix the EMG input port pin (P87) to "H" high level
Note 3: When using Port P8 s input/output IO ports, it is necessary to disable EMG. function.
Note 4: When going to STOP mode, be sure to turn all of the PMD functions off before entering STOP mode.
Note 5: Operate high-frequency clock oscillation circuit and PLL circuit beforehand when using PMD circuit.
The motor control circuit consists of 5 units. These include a position detection unit to detect the zero-cross points
PMD function pins are alocated P8 and P9. As for the switching procedure from general port to PMD port, refer
Configuration of the Motor Control Circuit
or disable the EMG circuit before setting PMD function to avoid an accidental EMG operation.
It is necessary to stop PMD circuit operation before stopping high-frequency oscillation circuit and PLL circuit, and start
the operation of STOP mode , IDLE0 mode, SLOW1 mode, SLOW2 mode, SLEEP0 mode and SLEEP1 mode.
CU
Error handling,
Speed control
Figure 19-1 Block Diagram of the Motor Control Circuit
Figure 19-2 Conceptual Diagram of DC Motor Control
etc.
Position signal
imer circuit
detection
Position
circuit
P D circuit
Three-phase PW
input
Protective control
Position detection
Electrical angle timer
Waveform calculation
Data and address buses
Motor control circuit
Electrical angle
Error detection
timer circuit
generation
Waveform
Page 283
CPU core
circuit
input
U, V, W, X, Y, Z
PDU, PDV, PDW
CL, E G
U, V, W, X, Y, Z
Waveform
arithmetic
circuit
Power drive
Upper phase: u, v, w
Lower phase: x, y, z
DC motor
DC current
TMP89FM82T