DF71251AD50FPV Renesas Electronics America, DF71251AD50FPV Datasheet - Page 529

• 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: -

14.2.3
CMCNT is a 16-bit register used as an up-counter. When the counter input clock is selected with
bits CKS1 and CKS0 in CMCSR and the STR bit in CMSTR is set to 1, CMCNT starts counting
using the selected clock.
When the value in CMCNT and the value in compare match constant register (CMCOR) match,
CMCNT is cleared to H'0000 and the CMF flag in CMCSR is set to 1.
The initial value of CMCNT is H'0000.
Initial value:
14.2.4
CMCOR is a 16-bit register that sets the interval up to a compare match with CMCNT.
The initial value of CMCOR is H'FFFF.
Initial value:
R/W:
R/W:
Bit:
Bit:
R/W
R/W
Compare Match Counter (CMCNT)
Compare Match Constant Register (CMCOR)
15
15
0
1
R/W
R/W
14
14
0
1
R/W
R/W
13
13
0
1
R/W
R/W
12
12
0
1
R/W
R/W
11
11
0
1
R/W
R/W
10
10
0
1
R/W
R/W
9
0
9
1
R/W
R/W
8
0
8
1
R/W
R/W
7
0
7
1
R/W
R/W
Rev. 5.00 Mar. 06, 2009 Page 509 of 770
6
0
6
1
R/W
R/W
5
0
5
1
R/W
R/W
4
0
4
1
R/W
R/W
3
0
3
1
REJ09B0243-0500
R/W
R/W
2
0
2
1
R/W
R/W
1
0
1
1
R/W
R/W
0
0
0
1