HD64F3437TFI16V Renesas Electronics America, HD64F3437TFI16V Datasheet - Page 428

• Manufacturer Part Number: HD64F3437TFI16V
• Description: MCU FLASH 60K 100-TQFP
• Manufacturer: Renesas Electronics America

Specifications of HD64F3437TFI16V

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

19.4.3
Flowchart for Programming One Byte
396
(set bit of block to be programmed to 1)
Write data to flash memory (flash
(clear bit of programmed block to 0)
End (1-byte data programmed)
Select program-verify mode
Enable watchdog timer
Set erase block register
Disable watchdog timer
Verify
Clear erase block register
memory latches write
(PV bit = 1 in FLMCR)
address and data)
Select program mode
Programming Flowchart and Sample Program
(P bit = 1 in FLMCR)
Wait (t
Wait (x) s
*3
Clear PV bit
Clear P bit
(read memory)
Start
n = 1
VS
1 ) s
OK
*4
*4
*1
*2
Figure 19.8 Programming Flowchart
No go
End of programming
Programming error
Clear PV bit
n
N?
Yes
*4
Notes: *1 Write the data to be programmed
*2 Set the timer overflow interval to the
*3 Read the memory data to be verified
*4 x:
End of verification
No
with a byte transfer instruction.
shortest value (CKS2, CKS1, CKS0
all cleared to 0).
with a byte transfer instruction.
t
N:
VS
1: 4 s or more
10 to 20 s
50 (set N so that total
programming time does not
exceed 1 ms)
n + 1
n