DF2148RTE20IV Renesas Electronics America, DF2148RTE20IV Datasheet - Page 692
DF2148RTE20IV
Manufacturer Part Number
DF2148RTE20IV
Description
MCU 5V 128K I-TEMP,PB-FREE, 100-
Manufacturer
Renesas Electronics America
Series
H8® H8S/2100r
Specifications of DF2148RTE20IV
Core Processor
H8S/2000
Core Size
16-Bit
Speed
20MHz
Connectivity
Host Interface, I²C, IrDA, SCI
Peripherals
POR, PWM, WDT
Number Of I /o
74
Program Memory Size
128KB (128K x 8)
Program Memory Type
FLASH
Ram Size
4K x 8
Voltage - Supply (vcc/vdd)
4 V ~ 5.5 V
Data Converters
A/D 8x10b; D/A 2x8b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
100-TQFP, 100-VQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
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Section 22 ROM
Rev. 4.00 Sep 27, 2006 page 646 of 1130
REJ09B0327-0400
User program mode
1. Initial state
3. Flash memory initialization
(1) The program that will transfer the
programming/ erase control program to on-chip
RAM should be written into the flash memory by
the user beforehand.
(2) The programming/erase control program
should be prepared in the host or in the flash
memory.
The programming/erase program in RAM is
executed, and the flash memory is initialized (to
H'FF). Erasing can be performed in block units,
but not in byte units.
The chip
The chip
Application program
Transfer program
Transfer program
Flash memory
Flash memory
Flash memory
Boot program
Boot program
(old version)
erase
erase control program
(Mask ROM Version, H8S/2148 F-ZTAT, H8S/2147N F-ZTAT, H8S/2144 F-ZTAT, and H8S/2142 F-ZTAT)
New application
New application
Programming/
program
program
Host
Host
Figure 22.5 User Program Mode (Example)
erase control program
Programming/
RAM
RAM
SCI
SCI
2. Programming/erase control program transfer
4. Writing new application program
The chip
The chip
Executes the transfer program in the flash
memory, and transfers the programming/erase
control program to RAM.
Next, the new application program in the host is
written into the erased flash memory blocks. Do
not write to unerased blocks.
Application program
Transfer program
New application
Transfer program
Flash memory
Flash memory
Boot program
Boot program
(old version)
program
New application
program
Host
Host
erase control program
erase control program
Programming/
Programming/
Program execution state
RAM
RAM
SCI
SCI
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