DF2437FV Renesas Electronics America, DF2437FV Datasheet - Page 660
DF2437FV
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
-
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Part Number:
DF2437FV
Manufacturer:
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Quantity:
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Response
Error Response
(5) Received Data Check
The methods for checking of received data are listed below.
1. Input Frequency
Rev.2.00 May. 28, 2009 Page 620 of 732
REJ09B0059-0200
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.
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