DF2148ATE20 Renesas Electronics America, DF2148ATE20 Datasheet - Page 737
DF2148ATE20
Manufacturer Part Number
DF2148ATE20
Description
IC H8S MCU FLASH 128K 100-QFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2100r
Specifications of DF2148ATE20
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
-20°C ~ 75°C
Package / Case
100-TQFP, 100-VQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Other names
HD64F2148ATE20
HD64F2148ATE20
HD64F2148ATE20
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
DF2148ATE20IV
Manufacturer:
Renesas Electronics America
Quantity:
135
Company:
Part Number:
DF2148ATE20IV
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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On-Board Programming Modes
Boot mode
1. Initial state
3. Flash memory initialization
Section 23 ROM
The chip
The chip
The flash memory is in the erased state when the
device is shipped. The description here applies to
the case where the old program version or data
is being rewritten. The user should prepare the
programming control program and new
application program beforehand in the host.
The erase program in the boot program area (in
RAM) is executed, and the flash memory is
initialized (to H'FF). In boot mode, entire flash
memory erasure is performed, without regard to
blocks.
Application program
Flash memory
Flash memory
Flash memory
Boot program
Boot program
(old version)
erase
Programming control
New application
New application
program
program
program
Host
Host
(H8S/2148 F-ZTAT A-Mask Version, H8S/2147 F-ZTAT A-Mask Version, H8S/2144 F-ZTAT A-Mask Version)
Programming control
Boot program area
program
RAM
RAM
Figure 23.4 Boot Mode
SCI
SCI
2. Programming control program transfer
4. Writing new application program
The chip
The chip
When boot mode is entered, the boot program in
the chip (originally incorporated in the chip) is
started, an SCI communication check is carried
out, and the boot program required for flash
memory erasing is automatically transferred to
the RAM boot program area.
The programming control program transferred
from the host to RAM by SCI communication is
executed, and the new application program in the
host is written into the flash memory.
Application program
Rev. 4.00 Sep 27, 2006 page 691 of 1130
New application
Flash memory
Flash memory
Boot program
Boot program
(old version)
program
Programming control
New application
program
program
Host
Host
Programming control
Boot program area
control program
Boot program
Programming
Program execution state
program
RAM
RAM
area
REJ09B0327-0400
SCI
SCI
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