DF2437FV Renesas Electronics America, DF2437FV Datasheet - Page 659

• Manufacturer Part Number: DF2437FV
• Description: IC H8S/2437 MCU FLASH 128QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2400r

Specifications of DF2437FV

• Core Processor: H8S/2600
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: I²C, SCI
• Peripherals: POR, PWM, WDT
• Number Of I /o: 85
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 16x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 128-QFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

(j) Programming Unit Inquiry
The boot program will return the programming unit used to program data.
Command
Response
(k) New Bit-Rate Selection
The boot program will set a new bit rate and return the new bit rate.
This command should be transmitted after the clock mode selection command.
Command
• Block last Address (four bytes): Last address of a block
• SUM (one byte): Checksum
• Command, H'27, (one byte): Inquiry regarding programming unit
• Response, H'37, (one byte): Response to programming unit inquiry
• Size (one byte): The number of bytes that indicates the programming unit, which is fixed to
• Programming unit (two bytes): A unit for programming
• SUM (one byte): Checksum
• Command, H'3F, (one byte): Selection of new bit rate
• Size (one byte): The number of bytes that represents the bit rate, input frequency, number
• Bit rate (two bytes): New bit rate
• Input frequency (two bytes): Frequency of the clock input to the boot program
There are as many groups of data representing the start and last addresses as there are
blocks.
2
This is the unit for reception of program data.
of multiplication ratios, and multiplication ratio
One hundredth of the value (e.g. when the value is 19200 bps, it will be 192, which is
H'00C0.)
This is valid to the hundredths place and represents the value in MHz multiplied by 100.
(E.g. when the value is 20.00 MHz, it will be 2000, which is H'07D0.)
H'27
H'37
H'3F
Number of
multiplication ratios
SUM
Size
Programming unit
Size
Multiplication
ratio 1
SUM
Bit rate
Multiplication
ratio 2
Rev.2.00 May. 28, 2009 Page 619 of 732
Input frequency
REJ09B0059-0200