w49v002fa Winbond Electronics Corp America, w49v002fa Datasheet - Page 29

• Manufacturer Part Number: w49v002fa
• Description: 256k X 8 Cmos Flash Memory With Fwh Interface
• Manufacturer: Winbond Electronics Corp America

Timing Waveforms for FWH Interface Mode, continued
FGPI Register/Product ID Readout Timing Diagram
Reset Timing Diagram
#RESET
FWH[3:0]
FWH4
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.
CLK
FWH[3:0]
#RESET
FWH4
VDD
CLK
1 Clock
1101b
Start
1 Clock
IDSEL
0000b
A[27:24]
Load Address "FFBC0100(hex)" in 7 Clocks for GPI Register
& "FFBC0000(hex)/FFBC0001(hex) for Product ID
A[23:20] A[19:16]
T
PRST
T
KRST
0000b
Address
/0000b
0001b
0000b
- 29 -
/0001b
0000b
T
RST
F
M Size
0000b
Publication Release Date: February 19, 2002
Tri-State
T
RSTP
2 Clocks
TAR
1111b
1 Clock
0000b
Sync
Data out 2 Clocks
D[3:0]
T
RST
W49V002FA
Data
D[7:4]
Tri-State
2 Clocks
TAR
1111b
Revision A2
1 Clock
Next Start