DF71251AD50FPV Renesas Electronics America, DF71251AD50FPV Datasheet - Page 658

• 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: -

(4)
In response to the clock-mode selection command, the boot program sets the specified clock
mode. The boot program will return the information on the selected clock mode in response to
subsequent inquiries.
Rev. 5.00 Mar. 06, 2009 Page 638 of 770
REJ09B0243-0500
Command
Response
Error
response
⎯ Response H'31 (1 byte): Response to the inquiry on clock modes
⎯ Size (1 byte): The total length of the number of modes and mode data fields.
⎯ Mode (1 byte): Selectable clock mode (example: H'01 denotes clock mode 1)
⎯ SUM (1 byte): Checksum
⎯ Command H'11 (1 byte): Clock mode selection
⎯ Size (1 byte): Number of characters in the clock-mode field (fixed at 1)
⎯ Mode (1 byte): A clock mode returned in response to the inquiry on clock modes
⎯ SUM (1 byte): Checksum
⎯ Response H'06 (1 byte): Response to clock mode selection
⎯ Error response H'91 (1 byte): Error response to clock mode selection
⎯ ERROR (1 byte): Error code
Clock-mode selection
This is the ACK code and is returned when the specified clock-mode matches one of the
available clock modes.
H'11: Sum-check error
H'22: Non-matching clock mode
H'11
H'06
H'91
Size
ERROR
Mode
SUM