TMPM370FYFG Toshiba, TMPM370FYFG Datasheet - Page 292

• Manufacturer Part Number: TMPM370FYFG
• Manufacturer: Toshiba

Specifications of TMPM370FYFG

• Product Summaries: Summary
• Lead Free: Yes
• Rohs Compatible Product(s): Available
• Rom (kbytes): 256K
• Rom Type: Flash
• Ram (kbytes): 10K
• Number Of Pins: 100
• Package: LQFP(14x14)
• Vcc: 5V
• Cpu Mhz: 80
• Ssp (ch) Spi: -
• I2c/sio (ch): -
• Uart/sio (ch): 4
• Usb: -
• Can: -
• Ethernet: -
• External Bus Interface: N
• Cs/wait Controller (ch): -
• Dma Controller: -
• 10-bit Da Converter: -
• 10-bit Ad Converter: -
• 12-bit Ad Converter: 27
• 16-bit Timer / Counter: 8
• Motor / Igbt Control: Vector Engine
• Real Time Clock: -
• Watchdog Timer: Y
• Osc Freq Detect: Y
• Clock Gear: Y
• Low-power Hold Function: -
• Remote Control Interface: -
• Hardware Cec Controller: -
• Comparators: 4
• Low-voltage Detector: Y
• Etm Hardware Trace: 2-bit

(1) Setting the PWM period
(2) Compare function
input is updated at every PWM period. It is also possible to update comparator input at every half PWM
period.
V/W) and the carrier wave generated by the PWM counter (PMDnMDCNT) to determine which is larger to
generate PWM waveforms with the desired duty.
register value is loaded at every PWM period (when the internal counter value matches the MDPRD value).
It is also possible to update the compare register at every 0.5 PWM period.
The PWM period is determined by the MDPRD register. This register is double-buffered. Comparator
The pulse width modulation circuit compares the PWM compare registers of the 3 phases (PMDnCMPU/
The PWM compare register of each phase has a double-buffered compare register. The PWM compare
Sawtooth wave PWM: MDPRD register value =
Triangular wave PWM: MDPRD register value =
［Sawtooth wave］
[Triangular
wave]
waveform
waveform
PWMU
PWMU
[MDPRD]
[MDPRD]
[CMPU
[CMPU
When switching from counting
down to counting up,
MDCNT=1 in two cycles.
MDCNT
MDCNT
on
off
on
off
Figure 16-4 PWM Waveforms
TMPM370 16-8
MDCNT counts up to MDPRD and
is cleared to 1 in the next cycle.
Oscillation frequency [Hz]
Oscillation frequency [Hz]
PWM frequency [Hz]
PWM frequency [Hz] × 2
When switching from counting
down to counting up,
MDCNT=peak value (MDPRD)
in two cycles.
Motor control circuit
Time
Time
TMPM370