Specifications of the HT1 MOA3 S30

Rev. 1.1

1997-08-19

Ht1moa3.doc/HS

Page 16 of 24

Configuration Byte 1:

Configuration Byte 1 / Bits 5 ... 7:

These three bits are reserved.

ATTENTION: When writing a new value to Configuration Byte 1, bit positions marked as

“reserved“ must not be altered. To meet that condition read the current Configuration

Byte 1 value and mask in your new values for bit positions you are allowed to change.

Configuration Byte 1 / Bit 4:

Bit 4 = ‘1’: Configuration Page can be read and written to.

Bit 4 = ‘0’: Configuration Page can only be read. This process is irreversible !

ATTENTION: Do not set Bit 4 of Configuration Byte 1 to ‘0’ before having written the

final data into the Configuration Page of the transponder.

Configuration Byte 1 / Bits 1 ... 3:

These three bits are reserved.

ATTENTION: When writing a new value to Configuration Byte 1, bit positions marked as

“reserved“ must not be altered. To meet that condition read the current Configuration

Byte 1 value and mask in your new values for bit positions you are allowed to change.

Configuration Byte 1 / Bit 0:

Bit 0 = ‘0’: Access type for Blocks 4 to 7 is SECRET.

Bit 0 = ‘1’: Access type for Blocks 4 to 7 is PUBLIC.

This bit can be set or reset until Bit 4 of Configuration Byte 1 is set to ‘0’.

1

0

3

2

5

4

7

6

Access type for Blocks 4 to 7: "0" ... SECRET

"1" ... PUBLIC

reserved

reserved

reserved

OEM Lock Bit: "0" ... Configuration Page is ro

"1" ... Configuration Page is r/w

reserved

reserved

reserved