SPIRIT1 datasheet(78/94 Pages) STMICROELECTRONICS

78 / 94 page

SPIRIT1

78/94

Doc ID 022758 Rev 3

Table 39.

Radio configuration registers (digital blocks)

Address

Bit

Field Name

Reset

R/W

Description

MOD1

0x1A

7:0

DATARATE_M

0x83

R/W

The mantissa value of the data

rate equation

MOD0

0x1B

7CW

R/W

1: enable the CW transmit

mode

BT_SEL

Select BT value for GFSK

0: BT = 1

1: BT = 0.5

5:4

MOD_TYPE[1:0]

Modulation type

0: 2-FSK

1: GFSK

2: ASK/OOK

3: MSK

3:0

DATARATE_E

1010

The exponent value of the data

rate equation

FDEV0

0x1C

7:4

FDEV_E[3:0]

0100

R/W

The exponent value of the

frequency deviation equation

CLOCK_REC_ALGO

_SEL

Select PLL or DLL mode for

symbol timing recovery

2:0

FDEV_M

101

The mantissa value of the

frequency deviation equation

CHFLT

0x1D

7:4

CHFLT_M[3:0]

0010

R/W

The mantissa value of the

channel filter according to

Table 30

3:0

CHFLT_E

0011

The exponent value of the

channel filter according to

Table 30

AFC2

0x1E

AFC freeze on sync

R/W

1: enable the freeze AFC

correction upon sync word

detection

AFC enabled

1: enable AFC

AFC mode

Select AFC mode:

0: AFC loop closed on slicer

1: AFC loop closed on second

conversion stage

4:0

AFC PD leakage

01000

Peak detector leakage

AFC1

0x1F

7:0

AFC_FAST_PERIOD

0x18

R/W Length of the AFC fast period

AFC0

0x20

7:4

AFC_FAST_GAIN_L

OG2[3:0]

0010

R/W

AFC loop gain in fast mode

(log2)

3:0

AFC_SLOW_GAIN_L

OG2

0101

AFC loop gain in slow mode

(log2)

SPIRIT1 Datasheet(PDF) 78 Page - STMicroelectronics

SPIRIT1 Datasheet(HTML) 78 Page - STMicroelectronics

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94

Datasheet Download

Link URL