User's Manual

USER MANUAL PREVIEW

PTM 535BZ – BLUETOOTH AND ZIGBEE GREEN POWER PUSHBUTTON TRANSMITTER

5.5.1 NFC HEADER structure

The structure of the NFC HEADER area is shown in Table 12 below.

NFC Page Byte 0 Byte 1 Byte 2 Byte 3

0x29 START (0xE0) LENGTH (0x0A) VERSION (0x01) OEM MSB (0x00)

0x30 OEM LSB (0x0B) DEVICE_IDENTIFIER (0xCB:00:04)

0x31 REVISION (0x01) END (0xFE) UNUSED (0x0000)

Table 12 – NFC HEADER structure

The NFC HEADER contains the following fields:

 START

This field identifies the start of the NFC header and is always set to 0xE0

 LENGTH

This field identifies the length of the NFC header.

For PTM 535BZ, this field is set to 0x0A since the header structure is 10 bytes long

 VERSION

This field identifies the major revision and is set to 0x01 currently

 OEM

The 16 bit OEM field identifies the manufacturer of the device so that manufacturer-

specific layout implementations can be determined. For EnOcean GmbH this field is

set to 0x000B.

 DEVICE_IDENTIFIER

The 24 bit DEVICE_IDENTIFIER field identifies an individual device from the range

of devices manufactured by the manufacturer specified in the OEM field.

For PTM 535BZ, the DEVICE_IDENTIFIER is set to 0xCB:00:04

 REVISION

The REVISION field identifies the exact revision of the NFC layout. This REVISION

will be incremented whenever a change to the NFC layout is made.

 END

The END field identifies the end of the NFC header and is always set to 0xFE. The

number of bytes from START to END must equal LENGTH, otherwise the NFC

header is invalid.