DF71251AD50FPV Renesas Electronics America, DF71251AD50FPV Datasheet - Page 525

• 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: -

This LSI has an on-chip compare match timer (CMT) consisting of a 2-channel 16-bit timer. The
CMT has a16-bit counter, and can generate interrupts at set intervals.
14.1
• Selection of four counter input clocks
• Interrupt request on compare match
• Module standby mode can be set.
Figure 14.1 shows a block diagram of CMT.
TIMCMT3A_000020030900
Any of four internal clocks (Pφ/8, Pφ/32, Pφ/128, and Pφ/512) can be selected independently
for each channel.
[Legend]
CMSTR:
CMCSR:
CMCOR:
CMCNT:
CMI:
Features
Control circuit
Compare match timer start register
Compare match timer control/status register
Compare match timer constant register
Compare match counter
Compare match interrupt
Section 14 Compare Match Timer (CMT)
CMI0
Pφ/8
Figure 14.1 Block Diagram of CMT
Clock selection
Pφ/32
Channel 0
Pφ/128
Module bus
CMT
Pφ/512
Control circuit
CMI1
Rev. 5.00 Mar. 06, 2009 Page 505 of 770
Pφ/8
Clock selection
Pφ/32
Channel 1
Pφ/128
Internal bus
Pφ/512
REJ09B0243-0500
interface
Bus