TMPM333FDFG Toshiba, TMPM333FDFG Datasheet - Page 228

• 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
Applications using the Capture Function
9.7.2
example, we explain with TMRB3 and TMRB8. TB8OUT of the 16-bit timer TMRB8 is used to specify the
measurement time.
TB3MOD<TBCPM[1:0]> is set "11", TMRB3 count clock takes the counter value into the TB3CP0 at the rising
edge of TB8OUT and takes the counter value into TB3CP1 at the falling edge of TB8OUT.
upon rising of a timer flip-flop output (TB8OUT) of the 16-bit timer (TMRB8), and an UC counter value to be
taken into the capture register (TB3CP1) upon falling of TB8OUT of the 16-bit timer (TMRB8).
by generating the INTTB8 16-bit timer interrupt.
TB8OUT is 0.5 s, the frequency is 200 Hz (100 ÷ 0.5 s = 200 Hz).
Frequency measurement
The frequency of an external clock can be measured by using the capture function.
To measure frequency, another 16-bit timer is used in combination with the 16-bit event counter mode. As an
TMRB3 count clock selects TB3IN0 input and performs count operation by using external clock input. If
This setting allows a count value of the 16-bit up-counter UC to be taken into the capture register (TB3CP0)
A frequency is then obtained from the difference between TB3CP0 and TB3CP1 based on the measurement,
For example, if the difference between TB3CP0 and TB3CP1 is 100 and the level width setting value of
Count clock
(TB3IN0 pin input)
TB8OUT
Taking data into
TB3CP0
Taking data into
TB3CP1
INTTB8
Figure 9-7 Frequency Measurement
C1
C1
Page 208
C2
C2
C1
TMPM333FDFG/FYFG/FWFG
C2