TMPM333FDFG Toshiba, TMPM333FDFG Datasheet - Page 229

• Manufacturer Part Number: TMPM333FDFG
• Description: Microcontrollers (MCU) MCU w/ ARM Cortex-M3 512K FLASH, 32K SRAM
• Manufacturer: Toshiba

Specifications of TMPM333FDFG

• Processor Series: TX03
• Core: ARM Cortex M3
• 3rd Party Development Tools: MDK-ARM, RL-ARM, ULINK2
• Product Summaries: Summary
• Lead Free: Yes
• Rohs Compatible Product(s): Available
• Rom (kbytes): 512K
• Rom Type: Flash
• Ram (kbytes): 32K
• Number Of Pins: 100
• Package: LQFP(14×14)
• Vcc: 3V
• Cpu Mhz: 40
• Ssp (ch) Spi: -
• I2c/sio (ch): 3
• Uart/sio (ch): 3
• Usb: -
• Can: -
• Ethernet: -
• External Bus Interface: -
• Cs/wait Controller (ch): -
• Dma Controller: -
• 10-bit Da Converter: -
• 10-bit Ad Converter: 12
• 12-bit Ad Converter: -
• 16-bit Timer / Counter: 10
• Motor / Igbt Control: -
• Real Time Clock: 1
• Watchdog Timer: Y
• Osc Freq Detect: -
• Clock Gear: Y
• Low-power Hold Function: -
• Remote Control Interface: -
• Hardware Cec Controller: -
• Comparators: -
• Low-voltage Detector: -
• Etm Hardware Trace: 4-bit
• Lead Free Status / Rohs Status: Details

9.7.3
putting it in a free-running state using the prescaler output clock, an external pulse is input through the TBxIN0
pin and the up-counter (UC) is made to count up. A trigger is generated at each rising and falling edge of the
external pulse by using the capture function and the value of the up-counter is taken into the capture registers
(TBxCP0, TBxCP1). The CPU must be programmed so that INTCAPx1 is generated at the falling edge of an
external pulse input through the TBxIN0 pin.
by the clock cycle of an internal clock.
is 0.5 μs , the pulse width is 100 × 0.5 μs = 50 μs.
dependant upon the source clock used. The measurement of such pulse widths must be made using software.
generated the first time and C1 generated the second time is initially obtained by performing the second stage of
INTCAPx0 interrupt processing as shown in "Figure 9-8 Pulse Width Measurement" and this difference is mul-
tiplied by the cycle of the prescaler output clock to obtain the "Low" level width.
Pulse width measurement
By using the capture function, the "High" level width of an external pulse can be measured. Specifically, by
The "High" level pulse width can be calculated by multiplying the difference between TBxCP0 and TBxCP1
For example, if the difference between TBxCP0 and TBxCP1 is 100 and the cycle of the prescaler output clock
Caution must be exercised when measuring pulse widths exceeding the UC maximum count time which is
The "Low" level width of an external pulse can also be measured. In such cases, the difference between C2
Prescaler output
clock
TBxIN0 pin input
(external pulse)
Taking data into
TBxCP0
Taking data into
TBxCP1
INTCAPx0
INTCAPx1
Figure 9-8 Pulse Width Measurement
C1
C1
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C2
C2
C1
TMPM333FDFG/FYFG/FWFG
C2