DF2437FV Renesas Electronics America, DF2437FV Datasheet - Page 652
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
-
Available stocks
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Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
DF2437FV
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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(4) Inquiry/Selection States
The boot program returns information from the flash memory in response to the host’s inquiry
commands and selects the device code, clock mode, and bit rate in response to the host’s selection
command.
Inquiry/selection commands are listed below.
Table 20.11 Inquiry/Selection Commands
Command Command Name
H'20
H'10
H'21
H'11
H'22
H'23
H'24
H'25
H'26
H'27
H'3F
H'40
H'4F
The selection commands, which are device selection (H'10), clock mode selection (H'11), and new
bit rate selection (H'3F), should be transmitted from the host in that order. These commands will
Rev.2.00 May. 28, 2009 Page 612 of 732
REJ09B0059-0200
Supported device
inquiry
Device selection
Clock mode inquiry Inquiry regarding the number of clock modes and values of each
Clock mode
selection
Multiplication ratio
inquiry
Operating clock
frequency inquiry
User boot MAT
information inquiry
User MAT
information inquiry
Erasing block
information inquiry
Programming unit
inquiry
New bit rate
selection
Transition to
programming/erasin
g state
Boot program status
inquiry
Description
Inquiry regarding device codes and product names
Selection of device code
mode
Indication of the selected clock mode
Inquiry regarding the number of frequency-multiplied clock types,
the number of multiplication ratios, and the values of each
multiple
Inquiry regarding the maximum and minimum values of the main
clock and peripheral clocks
Inquiry regarding the number of user boot MATs and the start
and last addresses of each MAT
Inquiry regarding the number of user MATs and the start and last
addresses of each MAT
Inquiry regarding the number of blocks and the start and last
addresses of each block
Inquiry regarding the unit of programming data
Selection of new bit rate
Erasing of user MAT and user boot MAT, and entry to
programming/erasing state
Inquiry regarding the operating state of the boot program
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