67.13.3.2 SMC IOSET2 Write Timings

Table 67-51. SMC IOSET2 Write Signals - NWE Controlled (WRITE_MODE = 1)
Symbol Parameter Min Unit
Power supply 1.8V 3.3V
HOLD or NO HOLD SETTINGS (nwe hold ≠ 0, nwe hold = 0)
SMC15 Data Out Valid before NWE High nwe pulse  ×  tCPMCK nwe pulse  ×  tCPMCK ns
SMC16 NWE Pulse Width nwe pulse  ×  tCPMCK nwe pulse  ×  tCPMCK ns
SMC17 NBS0/A0 NBS1, NBS2/A1, NBS3, A2–A25 valid before NWE low nwe setup  ×  tCPMCK nwe pulse  ×  tCPMCK ns
SMC18 NCS low before NWE high (nwe setup - ncs rd setup + nwe pulse)  ×  tCPMCK (nwe setup - ncs rd setup + nwe pulse)  ×  tCPMCK ns
HOLD SETTINGS (nwe hold ≠ 0)
SMC19 NWE High to Data OUT, NBS0/A0 NBS1, NBS2/A1, NBS3, A2–A25 change nwe hold  ×  tCPMCK nwe hold  ×  tCPMCK ns
SMC20 NWE High to NCS Inactive(1) (nwe hold - ncs wr hold) ×  tCPMCK (nwe hold - ncs wr hold) ×  tCPMCK ns
NO HOLD SETTINGS (nwe hold = 0)
SMC21 NWE High to Data OUT, NBS0/A0 NBS1, NBS2/A1, NBS3, A2–A25, NCS change(1) 1.2 0.6 ns
Note: hold length = total cycle duration - setup duration - pulse duration. “hold length” is for “ncs wr hold length” or “NWE hold length”.
Table 67-52. SMC IOSET2 Write NCS Controlled (WRITE_MODE = 0)
Symbol Parameter Min Unit
Power supply 1.8V 3.3V
SMC22 Data Out Valid before NCS High ncs wr pulse × tCPMCK ncs wr pulse × tCPMCK ns
SMC23 NCS Pulse Width SMC14 SMC14 ns
SMC24 NBS0/A0 NBS1, NBS2/A1, NBS3, A2–A25 valid before NCS low ncs wr setup × tCPMCK ncs wr setup × tCPMCK ns
SMC25 NWE low before NCS high (ncs wr setup - nwe setup + ncs pulse) × tCPMCK (ncs wr setup - nwe setup + ncs pulse) × tCPMCK ns
SMC26 NCS High to Data Out, NBS0/A0, NBS1, NBS2/A1, NBS3, A2–A25, change ncs wr hold × tCPMCK ncs wr hold × tCPMCK ns
SMC27 NCS High to NWE Inactive (ncs wr hold - nwe hold) × tCPMCK (ncs wr hold - nwe hold) × tCPMCK ns
Figure 67-10. SMC Timings - NCS Controlled Read and Write
Figure 67-11. SMC Timings - NRD Controlled Read and NWE Controlled Write