DF3026X25V Renesas Electronics America, DF3026X25V Datasheet - Page 589

• Manufacturer Part Number: DF3026X25V
• Description: MCU 3V 256K PB-FREE 100-TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300Hr

Specifications of DF3026X25V

• Core Processor: H8/300H
• Core Size: 16-Bit
• Speed: 25MHz
• Connectivity: SCI, SmartCard
• Peripherals: PWM, WDT
• Number Of I /o: 70
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 3 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: Lead free / RoHS Compliant
• Eeprom Size: -

Note: If a memory cell does not operate normally and cannot be erased, one H'FF byte is transmitted as an erase error
indication, and the erase operation and subsequent operations are halted.
Figure 18.7 Boot Mode Execution Procedure
Set pins to boot program mode and execute reset-start
Host transfers data (H'00) continuously at prescribed
bit rate
H8/3024F-ZTAT version measures low period of H'00
data transmitted by host
H8/3024F-ZTAT version calculates bit rate and sets
value in bit rate register
After bit rate adjustment, H8/3024F-ZTAT version
transmits one H'00 data byte to host to indicate end of
adjustment
Host confirms normal reception of bit rate adjustment
end indication (H'00), and transmits one H'55 data byte
After receiving H'55, H8/3024F-ZTAT version transmits
one H'AA byte to host
Host transmits number of programming control program
bytes (N), upper byte followed by lower byte
H8/3024F-ZTAT version transmits received number of
bytes to host as verify data (echo-back)
Host transmits programming control program
sequentially in byte units
H8/3024F-ZTAT version transmits received
programming control program to host as verify data
(echo-back)
Transfer received programming control program to
on-chip RAM
Check flash memory data, and if data has already been
written, erase all blocks
Confirm that all flash memory data has been erased
Check ID code at beginning of user program transfer
area
Execute programming control program transferred to
on-chip RAM
Transmit one H'AA byte to host
End of transmission
n = N?
Start
n = 1
Section 18 Flash Memory [H8/3024F-ZTAT Version]
Yes
(Match)
Rev. 2.00 Sep 20, 2005 page 549 of 800
No
(Mismatch)
Transmit H'FF as
error notification
n + 1
REJ09B0260-0200
n