After that, SR-SBP2801-BLE-E will clear the UPDATE MAN ID flag to 0b0.
6.7.8 Optional Data register
The Optional Data register can be used to specify up to 4 byte of custom data that will be transmitted as part of
each data telegram. This optional data can store user-specific or application-specific information.
The size of the Optional Data field is specified by the OPTIONAL DATA SIZE field in the Configuration register.
The following settings of OPTIONAL DATA SIZE are supported:
1.0b00: 0 byte (No optional data, default)
2.0b01: 1 byte
3.0b10: 2 byte
4.0b11: 4 byte
If the size of the OPTIONAL DATA SIZE field is set to a non-zero value in the Configuration register then SR-
SBP2801-BLE-E will read the corresponding amount of data from the Optional Data register beginning with the
least significant byte (Byte 0 – Optional Data 0).
Note that using the optional data feature requires additional energy for the radio telegram transmission and
might therefore reduce the total number of redundant telegrams which are transmitted.
6.7.9 Variant register
The Variant register is 1 byte wide and allows selection of the custom radio transmission modes as described in
chapter 3.3. Additionally, it allows reducing the transmission interval from 20 ms to 10 ms and to increase the
bit rate from 1 Mbit to 2 Mbit. The structure of the Custom Variant register is shown Figure 31 below.
VARIANT
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
RFU
DATA_RATE
Figure 31 – Variant register structure
INTERVAL
TR ANSMISSION_MODE
6.7.9.1 Transmission Mode selection
Table 3 below shows the supported custom radio transmission modes that can be selected using Bit [2:0] of the
Custom Variant register.
Setting
Meaning
0b000
Commissioning and data telegrams in standard Advertising Mode
(Default configuration)
0b001
Commissioning telegrams in standard Advertising Mode
Data telegrams on 3 user-defined radio channels
0b010
Commissioning telegrams in standard Advertising Mode
Data telegrams on 2 user-defined radio channels
0b011
Commissioning telegrams in standard Advertising Mode
Data telegrams on 1 user-defined radio channel
0b100
Commissioning and Data telegrams on 3 user-defined radio channels
0b101
Commissioning and Data telegrams on 2 user-defined radio channels
0b110
Commissioning and Data telegrams on 1 user-defined radio channel
0b111
RFU (Do not use)
Table 3 – Transmission Mode settings
6.7.9.2 Interval selection
Starting with version DC-06 it is possible to
reduce the transmission interval from the
default setting of 20 ms to 10 ms by setting bit
3 of the Variant register.
Setting
Result
0b0
20 ms Interval (Default configuration)
0b1
10 ms Interval
Table 4 – Interval settings
6.7.9.3 Data rate selection
Starting with version DD-07 it is possible to
increase the data rate from the default setting
of 1 Mbit to 2 Mbit by setting bit 4 of the Variant
register.
Setting
Result
0b0
1 Mbit Data Rate (Default configuration)
0b1
2 Mbit Data Rate
Table 5 – Data Rate settings
6.7.10 Radio channel selection registers
If the TRANSMISSION MODE field of the Variant register is set to a value other than 0x00 then the radio
channels for transmission are selected using the registers TX_CHANNEL1, TX_CHANNEL2 and
TX_CHANNEL3 as described in chapter 3.3.
The TX_CHANNEL1, TX_CHANNEL2 and TX_CHANNEL3 registers are 1 byte wide and use the en- coding
shown in Table 6 below.
Note that two radio channel types are supported by SR-SBP2801-BLE-E:
1. Standard BLE radio channels
BLE Channel 0 … BLE Channel 39 use the even frequencies from 2402 MHz to 2480
2. Custom radio channels in between the standard BLE channels
Custom Channel 40 … 78 use the odd frequencies from 2403 MHz to 2479 MHZ
TX_CHANNELn
37
0
1
10
38
11
12
36
39
40
41
77
78
Frequency
2402 MHZ
2404 MHZ
2406 MHZ
2424 MHZ
2426 MHZ
2428 MHZ
2430 MHZ
2478 MHZ
2480 MHZ
2403 MHZ
2405 MHZ
2477 MHZ
2479 MHZ
Channel Type
BLE Advertising Channel
BLE Data Channel
BLE Data Channel
BLE Data Channel
BLE Advertising Channel
BLE Data Channel
BLE Data Channel
BLE Data Channel
BLE Advertising Channel
Custom Radio Channel
Custom Radio Channel
Custom Radio Channel
Custom Radio Channel
BLE Radio Channels
BLE Radio Channels
…
…
…
Table 6 – Radio Channel Selection register settings
6.7.11 Customer Data
SR-SBP2801-BLE-E allocates 64 pages (256 byte) for customer data that can be read and written via the NFC
interface in protected mode.
The main intention is to enable storing OEM-specific information such as product type, revision, date code or
similar. There is however no restriction (other than the maximum size of
256 byte) on the type of content that can be stored in this memory region.
SR-SBP2801-BLE-E will not access or modify this memory region.
Users should keep in mind that the content of this memory region will not be affected by a factory reset. This
means that after a factory reset, the content of this memory region can be read using the default PIN code. This
region should therefore not be used to store sensitive data.
