w83l950d Winbond Electronics Corp America, w83l950d Datasheet - Page 77

• Manufacturer Part Number: w83l950d
• Description: Peripheral Personal Computer Keyboard Controller
• Manufacturer: Winbond Electronics Corp America

The setting conditions and the timing are shown as following.
Standby
Read APROM
Program APROM
Erase All
Erase one page (512
bytes)
40K program verify
40K erase verify
40K Read-Disturb
MODE
GP3<3:0>
FCTRL<3:0>
GP3.6
FCEN
GP3.7
FOEN
GP1<7:0>
FA<15:8>
GP0<7 : 0>
FA<7 : 0>
GP3.4
FLATCH
(FOEN)
GP37
Nth Byte
Address
1
0
1
1
1
0
0
0
Nth Byte Address
50ns
Fig.18.1 The Programming Timing
1u
Nth Byte DATA
(FCEN)
GP36
1
0
0
0
0
0
0
0
150u
- 68 -
(FCTRL<3:0>)
GP33-GP30
0x0001
1u
0000
0001
1010
1001
0110
1111
1110
X
(N+1)st Byte
Address
(N+1)th Byte Address
(N+1)th Byte DATA
(FA<15:0>)
Address in
Address in
Address in
Address in
Address in
Address in
GP1<7:0>,
GP0<7:0>
X
X
W83L950D
GP0<7:0>
Data out
Data out
Data out
Data out
Data in
X
X
X