UM0932 datasheet(37/43 Pages) STMICROELECTRONICS

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UM0932

Management information base (MIB)

4.2.3

02h (SS Key)

This object holds the key used by the SS sub-system to encrypt and decrypt transmitted and

received data. It can be read or written.

4.2.4

04h (Last data indication)

This object stores information about the last indication message received (among

PHY_DataIndication Section 3.3.14, DL_DataIndication Section 3.3.17, SS_DataIndication

Section 3.3.21, DL_SnifferIndication Section 3.3.17, SS_SnifferIndication Section 3.3.22).

Its field values are equal to those notified by the last indication message and presented in

the four first bytes (0  3) of the IndicationData (Table 39, 48). It can be read only.

0 - 1

FSK bit rate

Bit rate for FSK communication.

0: 1200 bps

1: 2400 bps

2: 4800 bps

3: 9600 bps

1 (2400 bps)

FSK deviation

Deviation for FSK communication.

0: 0.5

1: 1

3 – 4

FSK preamble

length

Preamble length for FSK communication.

0: 16 bit

1: 24 bit

2: 32 bit

3: 40 bit

2 (32 bit)

FSK unique

word length

Unique word length for FSK communication.

0: 8 bit

1: 16 bit

1 (16 bit)

Reserved

Reserved bit

7 – 8

Unused

Unused bits

FSK unique

word MSByte

FSK modulation unique word MSB (used if unique

word length is 16 bits only)

9Bh

FSK unique

word LSByte

FSK modulation unique word LSB

58h

Table 54. MIB object 01h: MIB_WriteRequest and MIB_ReadRequest data format (continued)

Byte

index

Bit

index

Label

Description and available values

Factory default value

Table 55. MIB object 02h: MIB_WriteRequest and MIB_ReadRequest Data format

Byte

index

Label

Description and available values

Factory default value

 15 SS Key

128-bit AES key used to process transmitted and

received frames.

00000000000000000000000000000000

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