DF2238RTF6 Renesas Electronics America, DF2238RTF6 Datasheet - Page 797
DF2238RTF6
Manufacturer Part Number
DF2238RTF6
Description
MCU 2.2/3V 256K 100-TQFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2200r
Datasheet
1.DF2238RFA6V.pdf
(1048 pages)
Specifications of DF2238RTF6
Core Processor
H8S/2000
Core Size
16-Bit
Speed
6MHz
Connectivity
I²C, SCI, SmartCard
Peripherals
POR, PWM, WDT
Number Of I /o
72
Program Memory Size
256KB (256K x 8)
Program Memory Type
FLASH
Ram Size
16K x 8
Voltage - Supply (vcc/vdd)
2.2 V ~ 3.6 V
Data Converters
A/D 8x10b; D/A 2x8b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
100-TQFP, 100-VQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Other names
HD64F2238RTF6
HD64F2238RTF6
HD64F2238RTF6
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
DF2238RTF6V
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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20.6.2
On-board programming/erasing of an individual flash memory block can also be performed in user
program mode by branching to a user program/erase control program. The user must prepare on-
board means for controlling FWE, on-board means of supplying programming data, and branching
conditions. The flash memory must contain the user program/erase control program or a program
that provides the user program/erase control program from external memory. As the flash memory
itself cannot be read during programming/erasing, transfer the user program/erase control program
to on-chip RAM, as in boot mode. Figure 20.8 shows a sample procedure for
programming/erasing in user program mode. Prepare a user program/erase control program in
accordance with the description in section 20.8, Flash Memory Programming/Erasing.
20.7
A setting in the RAM emulation register (RAMER) enables part of RAM to be overlapped onto
the flash memory area so that data to be written to flash memory can be emulated in RAM in real
time. Emulation can be performed in user mode or user program mode. Figure 20.9 shows an
example of emulation of real-time flash memory programming.
Figure 20.8 Programming/Erasing Flowchart Example in User Program Mode
Programming/Erasing in User Program Mode
Flash Memory Emulation in RAM
Branch to user program/erase control
Transfer user program/erase control
Execute user program/erase control
Branch to flash memory application
program (flash memory rewrite)
program to RAM
program in RAM
Program/erase?
Reset-start
program
Yes
No
Branch to flash memory application
Section 20 Flash Memory (F-ZTAT Version)
Rev. 6.00 Mar. 18, 2010 Page 735 of 982
program
REJ09B0054-0600
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