DF71251AD50FPV Renesas Electronics America, DF71251AD50FPV Datasheet - Page 255

• 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: -

9.3.30
TWCR is an 8-bit readable/writable register that controls the waveform when synchronous counter
clearing occurs in TCNT_3 and TCNT_4 in complementary PWM mode and specifies whether to
clear the counters at TGRA_3 compare match. The CCE bit and WRE bit in TWCR must be
modified only while TCNT stops.
Bit
7
6 to 1
Bit Name
CCE
—
Timer Waveform Control Register (TWCR)
Note:
*
Initial
Value
0*
All 0
Initial value:
Do not set to 1 when complementary PWM mode is not selected.
R/W:
Bit:
R/W
R/(W)
R
R/(W)
CCE
0*
7
R
6
0
-
Description
Specifies whether to clear counters at TGRA_3
compare match in complementary PWM mode.
0: Does not clear counters at TGRA_3 compare match
1: Clears counters at TGRA_3 compare match
[Setting condition]
•
These bits are always read as 0. The write value should
always be 0.
Compare Match Clear Enable
Reserved
When 1 is written to CCE after reading CCE = 0
R
5
0
-
R
4
0
-
R
3
0
-
Rev. 5.00 Mar. 06, 2009 Page 235 of 770
R
2
0
-
R
1
0
-
R/(W)
WRE
0
0
REJ09B0243-0500