ATAES132-MA3H-ER-T Atmel, ATAES132-MA3H-ER-T Datasheet - Page 57
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ATAES132-MA3H-ER-T
Manufacturer Part Number
ATAES132-MA3H-ER-T
Description
EEPROM AES 32Kbit (MA3) I2C
Manufacturer
Atmel
Datasheet
1.ATAES132-SH-EQ.pdf
(166 pages)
Specifications of ATAES132-MA3H-ER-T
Rohs
yes
Maximum Clock Frequency
1 MHz
Operating Supply Voltage
6 V
Maximum Operating Temperature
- 40 C to + 85 C
Mounting Style
SMD/SMT
Package / Case
UDFN-8
Interface Type
I2C
Factory Pack Quantity
5000
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Table 7-59. Input parameters
Table 7-60. Output parameters
The command and response packet is transmitted as a block beginning with the count and ending with a packet checksum.
This block format is described in Section 6.1.
Opcode
Mode
Param1
Param2
Data
Name
ReturnCode
(Bytes)
Name
Lock
Mode
Zone
Checksum
InMAC
Size
1
Notes
Upon success, 0x00 will be returned. Any command execution or validation failure generates a
non-zero error code, per Section 6.3
(Bytes)
0 or 16
Size
1
1
2
2
Notes
0x0D
Bit 0-1: If 00b, lock the SmallZone register
Bit 2: If 1b, validate the memory checksum in Param2
Bits 3-4: Reserved. Must be 0x00
Bit 5: If 1b, include the usage counter associated with the
Bit 6: If 1b, include the SerialNum in the MAC
Bit 7: If 1b, include the first four bytes of the SmallZone in the MAC
Upper byte is always 0x00. If Mode[0:1] is 11b the lower byte is the user
zone to be locked. (see Section 7.19.2) For any other values of Mode[0:1],
this field must be 0x0000.
If mode bit 2 is 1b, contains the CRC-16 checksum generated of the memory
segment being locked. If mode bit 2 is 0b, this parameter must be 0x0000.
If Mode[0:1] is 11b, contains the MAC authorizing update of
ZoneConfig[Zone].ReadOnly as described in Section 7.19.2. For all other
modes this field is ignored.
If 01b, lock the key memory
If 10b, lock the configuration memory, excluding the SmallZone
If 11b, then set the ZoneConfig[Zone].ReadOnly byte to ReadOnly
If 0b, suppress the checksum validation (not recommended by Atmel)
ZoneConfig[Zone].WriteID key in the MAC
(Ignored unless Mode[0:1] is 11b)
(Ignored unless Mode[0:1] is 11b)
(Ignored unless Mode[0:1] is 11b)
Atmel ATAES132 Preliminary Datasheet
8760A−CRYPTO−5/11
57
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