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ETC

PCF7935 Datasheet Preview

PCF7935 Datasheet

(PCF7930 - PCF7935) Memory Organisation

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Memory structure
PCF7930/31/35
Memory organisation
Control memory flags of block 0
Password (Bytes 0..6)
The password is 56 bits long. If the pasword function has been ativated by the PAC flag, the pattern being
written in this area must be transmitted by the base station with every program command.
PCF7930/31/35
1




ETC

PCF7935 Datasheet Preview

PCF7935 Datasheet

(PCF7930 - PCF7935) Memory Organisation

No Preview Available !

Password Active Flag PAC (Byte 7)
If PAC flag = 1 , date send to the transponder is checked for correctness of the password.
Block write Protection BWP (Byte 8)
Each block of the user date can be separatelu protected agains programming by setting the block write
protection.
Control memory flags of block 1
Sync_pattern (Bytes 16..23)
In these 8 bytes any type of data can be stored. If RB1 is enabled, the Sync_pattern is always the firs
information that is transmitted from the transponder.
Identifier pattern IDE (Bytes 24..27) / PCF7935 /
If the Identifier function is enabled by IDL this 4-byte pattern is transmitted after the power-up sequence. The
IDE pattern is used by the calculation unit during Authentication Mode.
PCF7930/31/35
2


Part Number PCF7935
Description (PCF7930 - PCF7935) Memory Organisation
Maker ETC
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PCF7935 Datasheet PDF






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