X76F101 Datasheet, PDF (6/17 Pages) Xicor Inc. – Secure SerialFlash

X76F101
Figure 4. Sector Write Sequence (Password Required)
Host
Commands
X76F101
Response
SDA _S
WRITE
COMMAND
If ACK, Then
Password Matches
Host
Commands
Password ACK
COMMAND
S
X76F101
Responce
Write
Password
7
...
Write
Password
0
Figure 5. Acknowledge Polling
Wait t_WC
OR
Password
ACK
Command
P
Wait t_WC
Data ACK Polling
SCL
8th clk.
‘ACK’
8th
of 8th
clk
clk
pwd. byte
SDA
‘ACK’
START
condition
8th bit
Figure 6. Sector Read Sequence (Password Required)
Host
Commands
X76F101
Response
SDA _S
READ
COMMAND
If ACK, Then
Password Matches
Host
Commands
Password ACK
COMMAND
S
X76F101
Responce
Read
Password
7
...
Data 0
Read
Password
0
Data n
‘ACK’
clk
ACK or
no ACK
Wait t_WC
OR
Password
ACK
Command
P
6