Datasheet > DS28E39

DS28E39

更新时间： 2023-12-20 18:44:22

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
16页	395K
描述
具有ChipDNA PUF保护的DeepCover安全ECDSA双向认证器

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DS28E39 数据手册

DS28E39

DeepCover Secure ECDSA Bidirectional

Authenticator with ChipDNA PUF Protection

long. For operational details, see Figure 6 and Figure 7.

A descriptive list of these ROM function commands fol-

lows in the subsequent sections and the commands are

summarized in Table 1.

1-Wire ROM Commands

Once the bus master has detected a presence, it can

issue one of the seven ROM function commands that the

DS28E39 supports.All ROM function commands are 8 bits

BUS MASTER Tx

RESET PULSE

FROM ROM FUNCTION FLOW PART 2

FROM DEVICE FUNCTIONS

FLOW CHART

OD = 0

RESET PULSE?

BUS MASTER Tx

SLAVE Tx

ROM FUNCTION COMMAND

PRESENCE PULSE

33h

55h

F0h

CCh

READ ROM

COMMAND?

MATCH ROM

COMMAND?

SEARCH ROM

COMMAND?

SKIP ROM

COMMAND?

TO ROM FUNCTION

FLOW PART 2

RC = 0

SLAVE Tx BIT 0

MASTER Tx BIT 0

SLAVE Tx

FAMILY CODE

(1 BYTE)

MASTER Tx BIT 0

BIT 0 MATCH?

SLAVE Tx BIT 1

MASTER Tx BIT 0

SLAVE Tx

SERIAL NUMBER

(6 BYTES)

MASTER Tx BIT 1

BIT 1 MATCH?

SLAVE Tx BIT 63

MASTER Tx BIT 63

SLAVE Tx

CRC BYTE

MASTER Tx BIT 63

BIT 63 MATCH?

RC = 1

BIT 63 MATCH?

RC = 1

TO ROM FUNCTION

FLOW PART 2

FROM ROM FUNCTION FLOW PART 2

Figure 6. ROM Function Flow, Part 1

Maxim Integrated

│ 12

www.maximintegrated.com

1...9 10 111213 14 15 16

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