6.3.9 Access Registers

Four (AT88SC0104CA/0204CA/0404CA) or eight (AT88SC0808CA) 8-bit access registers allow personalization of the device. Each access register works in conjunction with a password/key register to define the security settings for each individual zone of the user memory. Values in the access registers take immediate effect after programming. The default value for each bit is one.

Table 6-5. Access Register
Bit 7	Bit 6	Bit 5	Bit 4	Bit 3	Bit 2	Bit 1	Bit 0
PM1	PM0	AM1	AM0	ER	WLM	MDF	PGO

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