DF2437FV Renesas Electronics America, DF2437FV Datasheet - Page 660

• 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: -

Response
Error Response
(5) Received Data Check
The methods for checking of received data are listed below.
1. Input Frequency
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minimum to maximum frequencies which matches the clock modes of the specified device.
When the value is out of this range, an input-frequency error is generated.
• Number of multiplication ratios (one byte): The number of multiplication ratios to which
• Multiplication ratio 1 (one byte): The value of multiplication or division ratios for the main
• Multiplication ratio 2 (one byte): The value of multiplication or division ratios for the
• SUM (one byte): Checksum
• Response, H'06, (one byte): Response to selection of a new bit rate
• Error response, H'BF, (one byte): Error response to selection of new bit rate
• ERROR: (one byte): Error code
The received value of the input frequency is checked to ensure that it is within the range of
the device can be set. (e.g. when there are two operating clock frequency types, which are
the main and peripheral clocks, the number of multiplication ratios will be 2.)
operating frequency
Multiplication ratio: The value of the multiplication ratio (e.g. when the clock frequency is
multiplied by four, the multiplication ratio will be H'04.)
Division ratio: The inverse of the division ratio, as a negative number (e.g. when the clock
frequency is divided by two, the value of division ratio will be H'FE. H'FE = D'−2)
peripheral frequency
Multiplication ratio: The value of the multiplication ratio (e.g. when the clock frequency is
multiplied by four, the multiplication ratio will be H'04.)
Division ratio: The inverse of the division ratio, as a negative number (E.g. when the clock
is divided by two, the value of division ratio will be H'FE. H'FE = D'−2)
When it is possible to set the bit rate, ACK will be returned.
H'06
H'11:
H'24:
H'25:
H'26:
H'27:
H'BF
Checksum error
Bit-rate selection error
Error in input frequency
Multiplication-ratio error
Operating frequency error
ERROR
The rate is not available.
This input frequency is not within the specified range.
The ratio does not match an available ratio.
The frequency is not within the specified range.