X76F041 Datasheet, PDF (6/21 Pages) Xicor Inc. – PASS TM SecureFlash

X76F041
Stop Condition
All communications must be terminated by a stop condi-
tion, which is a LOW to HIGH transition of SDA when
SCL is HIGH. A stop condition can only be issued after
the transmitting device has released the bus.
Acknowledge
Acknowledge is a software convention used to indicate
successful data transfer. The transmitting device, either
master or slave, will release the bus after transmitting
eight bits. During the ninth clock cycle the receiver will
pull the SDA line LOW to acknowledge that it received
the eight bits of data.
OPERATIONAL MODES
THE FIRST BYTE
IN THE PROTOCOL
0 0 0XXXXA
0 0 1XXXXA
0 1 0XXXXA
0 1 1XXXXA
1 0 0XXXXX
1 0 0XXXXX
1 0 0XXXXX
1 0 0XXXXX
1 0 0XXXXX
1 0 0XXXXX
1 0 0XXXXX
1 0 0XXXXX
1 0 0XXXXX
All the rest
THE SECOND BYTE
IN THE PROTOCOL
Write address
Read address
Write address
Read address
00000000
00010000
00100000
00110000
01000000
01010000
01100000
01110000
10000000
COMMAND DESCRIPTION
Write (Sector)
Read (Random / Sequential)
Write (Sector)
Read (Random / Sequential)
Program write-password
Program read-password
Program configuration-password
Reset write password (all 0’s)
Reset read password (all 0’s)
Program configuration registers
Read configuration registers
Mass program
Mass erase
Reserved
PASSWORD USED:
Write
Read
Configuration
Configuration
Write
Read
Configuration
Configuration
Configuration
Configuration
Configuration
Configuration
Configuration
7002 FRM T04
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