DF71251AD50FPV Renesas Electronics America, DF71251AD50FPV Datasheet - Page 398

• Manufacturer Part Number: DF71251AD50FPV
• Description: MCU RISC FLASH 32K 8K 64LQFP
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH Tinyr

Specifications of DF71251AD50FPV

• Core Processor: SH-2
• Core Size: 32-Bit
• Speed: 50MHz
• Connectivity: SCI
• Peripherals: POR, PWM, WDT
• Number Of I /o: 37
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 4 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

Operation when Error Occurs during Reset-Synchronized PWM Mode Operation, and
Operation is Restarted in Normal Mode: Figure 9.149 shows an explanatory diagram of the
case where an error occurs in reset-synchronized PWM mode and operation is restarted in normal
mode after re-setting.
1.
2.
3.
4.
5.
6.
7.
8.
9.
10. The count operation is stopped by TSTR. (MTU2 output becomes the reset-synchronized
11. Set normal mode. (MTU2 positive phase output is low, and negative phase output is high.)
12. Initialize the pins with TIOR.
13. Set MTU2 output with the PFC.
14. Operation is restarted by TSTR.
Rev. 5.00 Mar. 06, 2009 Page 378 of 770
REJ09B0243-0500
MTU2 module output
After a reset, MTU2 output is low and ports are in the high-impedance state.
Select the reset-synchronized PWM output level and cyclic output enabling/disabling with
TOCR.
Set reset-synchronized PWM.
Enable channel 3 and 4 output with TOER.
Set MTU2 output with the PFC.
The count operation is started by TSTR.
The reset-synchronized PWM waveform is output on compare-match occurrence.
An error occurs.
Set port output with the PFC and output the inverse of the active level.
PWM output initial value.)
Port output
TIOC3D
TIOC3A
TIOC3B
Figure 9.149 Error Occurrence in Reset-Synchronized PWM Mode,
PE11
PE8
PE9
RESET
1
TOCR
2
High-Z
High-Z
High-Z
(RPWM)
TMDR
3
Recovery in Normal Mode
TOER
(1)
4
(MTU2)
PFC
5
TSTR
(1)
6
Match
7
occurs
Error
8
(PORT)
PFC
9
TSTR
(0)
10
(normal)
TMDR
11
0 out)
(1 init
TIOR
12
(MTU2)
PFC
13
TSTR
(1)
14