ATECC608A-TNGTLS datasheet(21/79 Pages) MICROCHIP

21 / 79 page

For the ATECC608A-TNGTLS:

• Data Slots 6, 8-9 can be written as clear text.

• No Data Slots can be written with encrypted text.

• Data Slots 8 and 10-12 can be read as clear text.

• Any slots not specified cannot be read or written.

Table 4-8. Address Format by Data Slot Size

Data Zone

Byte 1 Addr[15:8]

Byte 0: Addr[7:0]

Unused

Block

Unused

Slot

Offset

Data Slots[7:0]

Addr[15:9]

Addr[8]

Addr[7]

Addr[6:3]

Addr[2:0]

Data Slot[8]

Addr[15:12]

Addr[11:8]

Addr[7]

Addr[6:3]

Addr[2:0]

Data Slot[15:9]

Addr[15:10]

Addr[9:8]

Addr[7]

Addr[6:3]

Addr[2:0]

Data Slots[7:0]

To fully access one of these slots require two 32-byte accesses or nine 4-byte accesses

Table 4-9. Data Zone Addresses Slots 0-7

Slot#

(Addr[6:3])

Block #

(Addr[8])

Block Offset Value (Addr[2:0])

000

001

010

011

100

101

110

111

0x0 to 0x7

[0:3]

[4:7]

[8:11]

[12:15]

[16:19]

[20:23]

[24:27]

[28:31]

[32:35] Not Valid

Not Valid

Data Slot[8]

To fully access this slot require thirteen 32-byte accesses or 104 4-byte accesses or a combination of the two

methods.

Table 4-10. Data Zone Addressing Slot 8

Slot#

(Addr[6:3])

Block #

(Addr[8])

Block Offset Value (Addr[2:0])

000

001

010

011

100

101

110

111

0x8

0x0

[0:3]

[4:7]

[8:11]

[12:15]

[16:19]

[20:23]

[24:27]

[28:31]

0x1

[32:35]

[36:39]

[40:43]

[44:47]

[48:51]

[52:55]

[56:59]

[60:63]

...

0xC

[384:387]

[388:391]

[392:395]

[396:399]

[400:403]

[404:407]

[408:411]

[412:415]

Data Slots[15:9]

To fully access these slots requires three 32-byte accesses or eighteen 4-byte accesses or a combination of the two

methods.

ATECC608A-TNGTLS

General Command Information

Complete Datasheet

DS40002112C-page 21

ATECC608A-TNGTLS Datasheet(PDF) 21 Page - Microchip Technology

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