Datasheet

Table 21. Flash command timing specifications (continued)
Symbol Description Min. Typ. Max. Unit Notes
t
swapx01
t
swapx02
t
swapx04
t
swapx08
Swap Control execution time
• control code 0x01
• control code 0x02
• control code 0x04
• control code 0x08
—
—
—
—
200
70
70
—
—
150
150
30
μs
μs
μs
μs
t
pgmpart64k
t
pgmpart256k
Program Partition for EEPROM execution time
• 256 KB FlexNVM —
450
— ms
t
setramff
t
setram32k
t
setram64k
t
setram256k
Set FlexRAM Function execution time:
• Control Code 0xFF
• 32 KB EEPROM backup
• 64 KB EEPROM backup
• 256 KB EEPROM backup
—
—
—
—
70
0.8
1.3
4.5
—
1.2
1.9
5.5
μs
ms
ms
ms
Byte-write to FlexRAM for EEPROM operation
t
eewr8bers
Byte-write to erased FlexRAM location execution
time
— 175 260 μs 3
t
eewr8b32k
t
eewr8b64k
t
eewr8b128k
t
eewr8b256k
Byte-write to FlexRAM execution time:
• 32 KB EEPROM backup
• 64 KB EEPROM backup
• 128 KB EEPROM backup
• 256 KB EEPROM backup
—
—
—
—
385
475
650
1000
1800
2000
2400
3200
μs
μs
μs
μs
Word-write to FlexRAM for EEPROM operation
t
eewr16bers
Word-write to erased FlexRAM location
execution time
— 175 260 μs
t
eewr16b32k
t
eewr16b64k
t
eewr16b128k
t
eewr16b256k
Word-write to FlexRAM execution time:
• 32 KB EEPROM backup
• 64 KB EEPROM backup
• 128 KB EEPROM backup
• 256 KB EEPROM backup
—
—
—
—
385
475
650
1000
1800
2000
2400
3200
μs
μs
μs
μs
Longword-write to FlexRAM for EEPROM operation
t
eewr32bers
Longword-write to erased FlexRAM location
execution time
— 360 540 μs
t
eewr32b32k
t
eewr32b64k
t
eewr32b128k
t
eewr32b256k
Longword-write to FlexRAM execution time:
• 32 KB EEPROM backup
• 64 KB EEPROM backup
• 128 KB EEPROM backup
• 256 KB EEPROM backup
—
—
—
—
630
810
1200
1900
2050
2250
2675
3500
μs
μs
μs
μs
Peripheral operating requirements and behaviors
K20 Sub-Family Data Sheet Data Sheet, Rev. 7, 02/2013.
34 Freescale Semiconductor, Inc.