74.6.9.2 Write Timings

Table 74-36. SMC Write Signals - NWE-Controlled (WRITE_MODE = 1)
Symbol	Parameter	Conditions	Min	Max	Unit
HOLD or NO HOLD SETTINGS (NWE_HOLD ≠ 0, NWE_HOLD = 0)
SMC₁₅	Data out valid before NWE high	–	NWE_PULSE × t_MCK1 - 9	–	ns
SMC₁₆	NWE pulse width	–	NWE_PULSE × t_MCK1	–	ns
SMC₁₇	A[22:0] valid before NWE low	–	NWE_SETUP × t_MCK1 - 7	–	ns
SMC₁₈	NCS low before NWE high	–	(NWE_SETUP - NCS_RD_SETUP + NWE_PULSE) × t_MCK1 - 4	–	ns
HOLD SETTINGS (NWE_HOLD ≠ 0)
SMC₁₉	NWE high to data OUT, NBS0/A0 NBS1, A[23:1] change	–	NWE_HOLD × t_MCK1	–	ns
SMC₂₀	NWE high to NCS inactive⁽¹⁾	–	(NWE_HOLD - NCS_WR_HOLD) × t_MCK1	–	ns
NO HOLD SETTINGS (NWE_HOLD = 0)
SMC₂₁	NWE high to data OUT, NBS0/A0 NBS1, A[23:1], NCS change⁽¹⁾	–	3	–	ns

Note:

Hold length = Total cycle duration - setup duration - pulse duration. “hold length” is for “NCS_WR_HOLD length” or “NWE_HOLD length”.

Table 74-37. SMC Write Signals - NCS-Controlled (WRITE_MODE = 0)
Symbol	Parameter	Conditions	Min	Max	Unit
SMC₂₂	Data out valid before NCS high	–	NCS_WR_PULSE × t_MCK1 - 6	–	ns
SMC₂₃	NCS pulse width	–	NCS_WR_PULSE × t_MCK1	–	ns
SMC₂₄	A[22:0] valid before NCS low	–	NCS_WR_SETUP × t_MCK1 - 6	–	ns
SMC₂₅	NWE low before NCS high	–	(NCS_WR_SETUP - NWE_SETUP + NCS_PULSE) × t_MCK1	–	ns
SMC₂₆	NCS high to data OUT, A[25:0] change	–	NCS_WR_HOLD × t_MCK1 - 6	–	ns
SMC₂₇	NCS high to NWE inactive	–	(NCS_WR_HOLD - NWE_HOLD) × t_MCK1 - 6	–	ns

Figure 74-26. SMC Timings - NCS-Controlled Read and Write

Figure 74-27. SMC Timings - NRD Controlled Read and NWE Controlled Write