MC-78F0712-KIT Renesas Electronics America, MC-78F0712-KIT Datasheet - Page 133
MC-78F0712-KIT
Manufacturer Part Number
MC-78F0712-KIT
Description
KIT REF SYSTEM 78K0 UPD78F0712
Manufacturer
Renesas Electronics America
Specifications of MC-78F0712-KIT
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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7.4.3
counter 00 (TM00).
restarting the timer in synchronization with the edge of the signal input to the TI000 pin.
the necessary pulse width. Clear the overflow flag after checking it.
prescaler mode register 00 (PRM00) and the valid level of the TI000 or TI001 pin is detected twice, thus eliminating
noise with a short pulse width.
It is possible to measure the pulse width of the signals input to the TI000 pin and TI001 pin using 16-bit timer
There are two measurement methods: measuring with TM00 used in free-running mode, and measuring by
When an interrupt occurs, read the valid value of the capture register, check the overflow flag, and then calculate
The capture operation is not performed until the signal pulse width is sampled in the count clock cycle selected by
The basic operation setting procedure is as follows.
<1> Set the CRC00 register (see Figures 7-17, 7-20, 7-22, and 7-24 for the set value).
<2> Set the count clock by using the PRM00 register.
<3> Set the TMC00 register to start the operation (see Figures 7-17, 7-20, 7-22, and 7-24 for the set value).
Caution To use two capture registers, set the TI000 and TI001 pins.
Remarks 1. For the setting of the TI000 (or TI001) pin, see 7.3 (5) Port mode register 5 (PM5).
Setting
Pulse width measurement operations
Rising edge detection
2. For how to enable the INTTM00 (or INTTM01) interrupt, see CHAPTER 16
FUNCTIONS.
Count clock
INTTM01
Figure 7-16. CR01 Capture Operation with Rising Edge Specified
TM00
TI000
CR01
CHAPTER 7 16-BIT TIMER/EVENT COUNTER 00
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3
User’s Manual U17890EJ2V0UD
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2
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1
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N
N + 1
INTERRUPT
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