K20P121M100SF2 Datasheet, PDF (34/68 Pages) Freescale Semiconductor, Inc – Up to 100 MHz ARM Cortex-M4 core with DSP instructions delivering 1.25 Dhrystone MIPS per MHz

Peripheral operating requirements and behaviors
Figure 9. EEPROM backup writes to FlexRAM
6.4.2 EzPort Switching Specifications
Table 22. EzPort switching specifications
Num
EP1
EP1a
Description
Operating voltage
EZP_CK frequency of operation (all commands except
READ)
EZP_CK frequency of operation (READ command)
Min.
2.7
—
—
EP2
EZP_CS negation to next EZP_CS assertion
EP3
EZP_CS input valid to EZP_CK high (setup)
EP4
EZP_CK high to EZP_CS input invalid (hold)
EP5
EZP_D input valid to EZP_CK high (setup)
EP6
EZP_CK high to EZP_D input invalid (hold)
EP7
EZP_CK low to EZP_Q output valid (setup)
EP8
EZP_CK low to EZP_Q output invalid (hold)
EP9
EZP_CS negation to EZP_Q tri-state
2 x t_{EZP_CK}
5
5
2
5
—
0
—
Max.
3.6
f_SYS/2
f_SYS/8
—
—
—
—
—
12
—
12
Unit
V
MHz
MHz
ns
ns
ns
ns
ns
ns
ns
ns
K20 Sub-Family Data Sheet Data Sheet, Rev. 4, 3/2011.
34
Preliminary
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