AT88SC0808CA View Datasheet(PDF) - Atmel Corporation

Part Name

Description

MFG CO.

AT88SC0808CA

Atmel CryptoMemory

Atmel Corporation 

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5.2 Memory Reset

After an interruption in communication due protocol errors, power loss or any reason, perform "Acknowledge Polling" to

properly recover from the condition. Acknowledge polling consists of sending a start condition followed by a valid

CryptoMemory command byte and determining if the device responded with an acknowledge.

Figure 5-1. Bus Time for Two-wire Serial Communications

SCL: Serial Clock, SDA: Serial Data I/O

SCL

tF

tLOW

tHIGH

tLOW

SDA IN

tSU.STA

tHD.STA

tHD.DAT

tSU.DAT

tAA

tDH

SDA OUT

tR

tSU.STO

tBUF

Figure 5-2. Write Cycle Timing

SCL: Serial Clock, SDA: Serial Data I/O

SCL

SDA

8th BIT

ACK

Note:

WORDn

(1)

twr

STOP

CONDITION

START

CONDITION

The write cycle time tWR is the time from a valid stop condition of a write sequence to the end of the internal

clear/write cycle

Atmel AT88SC0808CA [Summary DATASHEET]

7

5204FS−CRYPTO−12/11

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