Datasheet

To erase the Flash, perform the following steps:
1.
Power off the chip.
2. Power on the chip with TST = 0.
3. Assert the ERASE signal for at least the ERASE pin assertion time as defined in the section “Electrical
Characteristics”.
4. Power off the chip.
Return to FFPI mode to check that the Flash is erased.
18.3.5.7 Memory Write Command
This command is used to perform a write access to any memory location.
The Memory Write command (WRAM) is optimized for consecutive writes. Write handshaking can be chained; an
internal address buffer is automatically increased.
Table 18-14. Write Command
Step Handshake Sequence MODE[3:0] DATA[15:0]
1 Write handshaking CMDE WRAM
2 Write handshaking ADDR0 Memory Address LSB
3 Write handshaking ADDR1 Memory Address
4 Write handshaking DATA *Memory Address++
5 Write handshaking DATA *Memory Address++
... ... ... ...
n Write handshaking ADDR0 Memory Address LSB
n+1 Write handshaking ADDR1 Memory Address
n+2 Write handshaking DATA *Memory Address++
n+3 Write handshaking DATA *Memory Address++
... ... ... ...
18.3.5.8 Get Version Command
The Get Version (GVE) command retrieves the version of the FFPI interface.
T
able 18-15. Get Version Command
Step Handshake Sequence MODE[3:0] DATA[15:0]
1 Write handshaking CMDE GVE
2 Read handshaking DATA Version
SAM E70/S70/V70/V71 Family
Fast Flash Programming Interface (FFPI)
© 2019 Microchip T
echnology Inc.
Datasheet
DS60001527D-page 90