r5f21368sdfp Renesas Electronics Corporation., r5f21368sdfp Datasheet - Page 648

• Manufacturer Part Number: r5f21368sdfp
• Description: Renesas Mcu R8c Family / R8c/3xt-a Series
• Manufacturer: Renesas Electronics Corporation.

Under development
R8C/36T-A Group
R01UH0240EJ0001 Rev.0.01
Apr 28, 2011
25.5
25.5.1
25.5.2
25.5.3
25.5.4
After measurement of each channel finishes, the values of data 1 and data 2 stored in the SFRs are transferred to
RAM using the DTC.
Use the DTC so that total 32 bits of registers TSCUDBR and TSCUPRC are transferred as measurement data
by a single DTC transfer request in Status 22.
During DTC transfer from the sensor control unit, set the transfer mode to repeat mode (set the MODE bit in the
DTCCRj register (j = 0 to 23) to 1) and disable interrupt generation (set the RPTINT bit in the DTCCRj register
(j = 0 to 23) to 0).
• In measurement trigger mode (when the TSCUCAP bit in the TSCUMR register is 1), an external trigger can
• In measurement trigger mode (when the TSCUCAP bit in the TSCUMR register is 1), if the TSCUSTRT bit in
To prevent measurement data from being overwritten by the next measurement data, the sensor control unit
should be kept charged until DTC transfer is completed.
About 20 to 30 cycles of the CPU cycle are necessary for obtaining the DTC bus right and transfer time.
If the charging time is set equal to or shorter than the wait time for transfer to complete, the charging time will
exceed the set value.
To update any registers other than the registers for TSCU software operation, stop measurement (set the
TSCUSTRT bit to 0) before updating the set values. After the set values are updated, perform initialization (set
the TSCUINIT bit to 1) before starting measurement.
Registers for TSCU software operation
• Bits CHSELXA0SW, CHSELXA1SW, and CHSELXBCSW in the TSCUCR1 register
• Registers TSIE0 to TSIE2 during TSCU software operation
be acknowledged only in Status 0. If an external trigger is input during a measurement period, measurement
does not start.
the TSCUCR0 register is set to 0 (measurement stops) to forcibly stop during measurement, set the
TSCUINIT bit in the TSCUCR0 register to 1 for initialization after measurement is stopped.
Measurement restarts from Status 1. Set the DTC again before measurement restarts.
(To change the set values during TSCU operation, stop measurement and then perform initialization before
starting measurement.)
Notes on Sensor Control Unit
Address to Store Detection Data
Measurement Trigger
Charging Time
Switching Set Values
Preliminary document
Specifications in this document are tentative and subject to change.
25. Sensor Control Unit
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