HD64F3644DV Renesas Electronics America, HD64F3644DV Datasheet - Page 151

• Manufacturer Part Number: HD64F3644DV
• Description: IC H8/3644 MCU FLASH 64QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300Lr

Specifications of HD64F3644DV

• Core Processor: H8/300L
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: SCI
• Peripherals: PWM, WDT
• Number Of I /o: 53
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 8x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-QFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

6.7.3
Flowchart for Programming One Byte
(set bit for block to be programmed to 1)
(clear bit for programmed block to 0)
(flash memory latches write address
End (1-byte data programmed)
Select program-verify mode
Write data to flash memory
Clear erase block register
Enable watchdog timer
Disable watchdog timer
Programming Flowchart and Sample Program
Set erase block register
(PV bit = 1 in FLMCR)
Select program mode
(P bit = 1 in FLMCR)
Wait (t
(read memory)
Wait (x) s
Clear PV bit
and data)
Clear P bit
Verify
Start
n = 1
vs1
OK
) s
*3
*1
*4
*5
*2
Figure 6.13 Programming Flowchart
NG
End of programming
Programming error
Clear PV bit
n
Notes: 1. Write the data to be programmed using a byte
N?
Yes
*5
2. For the timer overflow interval, set the timer
3. Read the memory data to be verified using a
4. Programming time x is successively
5. t
Rev. 6.00 Sep 12, 2006 page 129 of 526
transfer instruction.
counter value (TCW) to H'FE.
byte transfer instruction.
incremented to initial set value
6). The initial value should therefore be set to
15.8 s or less to make the total
programming time 1 ms or less.
N:
vs1
: 4 µs or more
6 (set N so that total programming time
does not exceed 1 ms)
End of verify
No
Double the programming time
(x
n + 1
2
REJ09B0326-0600
Section 6 ROM
x)
n
2
n–1
(n = 1 to