ib technology

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Note that the polling delay parameter must be a valid value (as shown in the table above),

other values will give undefined results.

Default RWD EEPROM parameter settings:

Byte 0: 0x60,

260mS Polling delay / SLEEP period

Byte 1: 0x03,

Aux data output as 9600 baud serial on OP0

Byte 2: Reserved

Byte 3: 0x00

MIFARE mode (ICODE mode not supported on this version)

Byte 4: 0x00

Wiegand NO parity option (only used if Byte 1 = 0x01 / 02)

Byte 5: 0x01

Aux block address on card (only used if Byte 8 = 0x01)

Byte 6: 0x00

Key number / type used for internal Block Read of Aux data

(Use Key Code 0 as Key Type A, only used if Byte 8 = 0x01)

Byte 7: 0x00

“Beep” output delay OFF

Byte 8: 0x00

Aux output source data is UID (serial number).

Byte 9: 0x00

Aux output (serial data) directed to OP0 pin.

Byte 10: 0x00

Aux output serial format, HEX byte format

Byte 11: 0x00

Aux data byte order, plain as read from card

Store Keys

The Micro RWD has additional internal storage for 32 Security KEYs. Six byte Key codes

are required to access individual card sectors for any Read or Write operations. This

command sequence allows 6 byte Key codes to be stored at any one of the 32 key code

locations. Factory defaults are Infineon/Philips specified transport key code pairs (Hex FF FF

FF FF FF FF / Hex FF FF FF FF FF FF)) and (Hex A0 A1 A2 A3 A4 A5 / Hex B0 B1 B2 B3

B4 B5) and these are stored in the RWD non-volatile memory during manufacture. Note that

due to the fundamental nature of these Key codes, incorrect values may render the system

inoperable. Only one or two Security key codes are required to unlock a card sector so the

provision of 32 storage locations allows for many possible applications and card uses.

IT IS STRONGLY ADVISED THAT THE KEY CODES IN THE RWD AND STORED ON

THE MIFARE CARD ARE NOT CHANGED UNTIL THE OPERATION OF THE

MIFARE CARD SECURITY IS FULLY UNDERSTOOD.

B7

B0

Command:

0 1 0 0 1 0 1 1

(Ascii “K”, 0x4B)

Argument1:

x x x K K K K K

(K = Key code number, 0 - 31)

Argument2:

D D D D D D D D

(D = data to write to EEPROM, LS byte)

Argument3:

D D D D D D D D

Argument4:

D D D D D D D D

Argument5:

D D D D D D D D

Argument6:

D D D D D D D D

Argument7:

D D D D D D D D

(D = data to write to EEPROM, MS byte)

Acknowledge:

1 X X X F X X F

(F = Status flags)