DF71251AD50FPV Renesas Electronics America, DF71251AD50FPV Datasheet - Page 385

• 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 PWM Mode 2 Operation, and Operation is Restarted
in Normal Mode: Figure 9.136 shows an explanatory diagram of the case where an error occurs
in PWM mode 2 and operation is restarted in normal mode after re-setting.
1.
2.
3.
4.
5.
6.
7.
8.
9.
10. Set normal mode.
11. Initialize the pins with TIOR.
12. Set MTU2 output with the PFC.
13. Operation is restarted by TSTR.
MTU2 module output
After a reset, MTU2 output is low and ports are in the high-impedance state.
Set PWM mode 2.
compare-match occurrence. In PWM mode 2, the cycle register pins are not initialized. In the
example, TIOC *A is the cycle register.)
Set MTU2 output with the PFC.
The count operation is started by TSTR.
Output goes low on compare-match occurrence.
An error occurs.
Set port output with the PFC and output the inverse of the active level.
The count operation is stopped by TSTR.
Initialize the pins with TIOR. (The example shows initial high output, with low output on
n = 0 to 15
Figure 9.136 Error Occurrence in PWM Mode 2, Recovery in Normal Mode
Port output
TIOC*A
TIOC*B
PEn
PEn
RESET
1
(PWM2)
TMDR
2
High-Z
High-Z
0 out)
TIOR
(1 init
3
Not initialized (cycle register)
(MTU2)
PFC
4
TSTR
(1)
5
Match
6
occurs
Error
7
(PORT)
PFC
8
Rev. 5.00 Mar. 06, 2009 Page 365 of 770
TSTR
(0)
9
(normal)
TMDR
10
0 out)
TIOR
(1 init
11
(MTU2)
PFC
REJ09B0243-0500
12
TSTR
(1)
13