HD64F2145BTE20 Renesas Electronics America, HD64F2145BTE20 Datasheet - Page 663

• Manufacturer Part Number: HD64F2145BTE20
• Description: IC H8S MCU FLASH 256K 100-QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2100r

Specifications of HD64F2145BTE20

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: I²C, IrDA, SCI, X-Bus
• Peripherals: PWM, WDT
• Number Of I /o: 74
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 4.5 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: -

1. Initial state
3. Flash memory initialization
(1) The program that will transfer the programming/erase
(2) The programming/erase control program should be
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.
<This LSI>
<This LSI>
control program from flash memory to on-chip RAM
should be written into the flash memory by the user
beforehand.
prepared in the host or in the flash memory.
Transfer program
Transfer program
<Flash memory>
<Flash memory>
Flash memory
Boot program
Boot program
(old version)
Application
program
erase
erase control program
application program
application program
Programming/
<Host>
<Host>
New
New
erase control program
Figure 23.4 User Program Mode (Example)
Programming/
<RAM>
<RAM>
SCI
SCI
2. Programming/erase control program transfer
4. Writing new application program
The transfer program in the flash memory is executed and
the programming/erase control program is transferred to RAM.
Next, the new application program in the host is written into
the erased flash memory blocks. Do not write to unerased
blocks.
<This LSI>
<This LSI>
Transfer program
Transfer program
<Flash memory>
<Flash memory>
Boot program
Boot program
(old version)
Rev. 3.00 Mar 21, 2006 page 607 of 788
Application
application
program
program
New
application program
<Host>
<Host>
New
erase control program
erase control program
Programming/
Programming/
Program execution state
<RAM>
<RAM>
REJ09B0300-0300
Section 23 ROM
SCI
SCI