W39V040FA Datasheet, PDF (32/36 Pages) Winbond – 512K X 8 CMOS FLASH MEMORY WITH FWH INERFACE

Timing Waveforms for FWH Interface Mode, continued
FGPI Register/Product ID Readout Timing Diagram
W39V040FA
CLK
#RESET
FWH4
FWH[3:0]
Start IDSEL
Address
M Size
TAR
1101b _0000b
A[27:24] A[23:20] A[19:16]
0000b
0001b
/0000b
0000b
0000b
/0001b
0000b Tri-State 1111b
1 Clock 1 Clock
Load Address "FFBC0100(hex)" in 7 Clocks for GPI Register
& "FFBC0000(hex)/FFBC0001(hex) for Product ID
2 Clocks
Sync
0000b
Data
D[3:0] D[7:4]
TAR
Tri-State 1111b
1 Clock Data out 2 Clocks 2 Clocks
Next Sta
1 Clock
Note: During the GPI read out mode, the DQ[4:0] will capture the states(High or Low) of the FGPI[4:0] input pins. The DQ[7:5] are reserved pins
Reset Timing Diagram
VDD
CLK
#RESET
FWH[3:0]
FWH4
T_PRST
T_KRST
T_RSTP
TRST
F
T_RST
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