M-V850E-IA4 Renesas Electronics America, M-V850E-IA4 Datasheet - Page 764

• Manufacturer Part Number: M-V850E-IA4
• Description: KIT EVAL V850E IA4 UPD70F3186
• Manufacturer: Renesas Electronics America

Specifications of M-V850E-IA4

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

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22.5.4 Flash functions
22.5.5 Pin processing
762
(1) FLMD0 pin
Caution Make sure that the FLMD0 pin is at 0 V when reset is released.
The FLMD0 pin is used to set the operation mode when reset is released and to protect the flash memory from
being written during self rewriting. It is therefore necessary to keep the voltage applied to the FLMD0 pin at 0
V when reset is released and a normal operation is executed. It is also necessary to apply a voltage of EV
level to the FLMD0 pin during the self programming mode period via port control before the memory is
rewritten.
When self programming has been completed, the voltage on the FLMD0 pin must be returned to 0 V.
Remark
FlashEnv
FlashBlockErase
FlashWordWrite
FlashBlockIVerify
FlashBlockBlankCheck
FlashFLMDCheck
FlashGetInfo
FlashSetInfo
FlashBootSwap
FlashWordRead
Function Name
For details, refer to the V850 Series Flash Memory Self Programming (Single
Power Supply Flash Memory) User’s Manual.
Contact an NEC Electronics sales representative for the above manual.
RESET signal
FLMD0 pin
Figure 22-15. Mode Change Timing
Table 22-11. Flash Function List
Initialization of flash control macro
Erasure of only specified one block
Writing from specified address
Internal verification of specified block
Blank check of specified block
Check of FLMD pin
Reading of flash information
Setting of flash information
Swapping of boot area
Reading data from specified address
EV
EV
CHAPTER 22 FLASH MEMORY
0 V
0 V
DD
DD
User’s Manual U16543EJ4V0UD
operation mode
Normal
Self programming mode
Outline
operation mode
Normal
Support
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√
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DD