AT88SC153-09GT-00 ATMEL Corporation, AT88SC153-09GT-00 Datasheet - Page 10

• Manufacturer Part Number: AT88SC153-09GT-00
• Description: 3 x 64 x 8 Secure Memory with Authentication
• Manufacturer: ATMEL Corporation

Command Definitions and Protocols
Table 9. Device Commands
Note:
Read EEPROM
Write EEPROM
10
Description
Write EEPROM
Read EEPROM
Verify Password
Initialize Authentication
Verify Authentication
Write Fuse
Read Fuse
p : Password set
r : Read/write password
AT88SC153
CS3
CS3
CS3
CS3
CS3
CS3
CS3
b7
The communications protocol is based on the popular two-wire serial interface. Note
that the most significant bit is transmitted first.
Figure 4. Read EEPROM
Note:
The data byte address is internally incremented following the transmission of each data
byte. During a read operation, the address “roll over” is from the last byte of the current
zone to the first byte of the same zone. If the host is not allowed to read at the specified
address, the device will transmit the corresponding data byte with all bits equal to “0”.
Figure 5. Write EEPROM
Note:
CS2
CS2
CS2
CS2
CS2
CS2
CS2
*don’t care bit
zz: Zone number
*don’t care bit
zz: Zone number
b6
Chip Select
CS1
CS1
CS1
CS1
CS1
CS1
CS1
b5
CS0
CS0
CS0
CS0
CS0
CS0
CS0
b4
Command
b3
0
0
1
1
z
z
r
b2
z
z
p
0
1
0
1
Instruction
b1
0
0
1
1
1
1
1
1016D–SMEM–04/04
b0
0
1
1
0
0
0
0