SPIRIT1 datasheet(86/94 Pages) STMICROELECTRONICS

86 / 94 page

SPIRIT1

86/94

Doc ID 022758 Rev 3

TIMERS[0]

0x58

7:0

LDC_RELOAD_COUN

TER[7:0]

0R/W

Counter part of the LDC

reload value timer. When this

timer expires the SPIRIT1

exits SLEEP state. The reload

timer value is used if the

SYNC word is detected (by

the receiver) or if the

LDC_RELOAD command is

used.

CSMA_CONFIG[3]

0x64

7:0

BU_COUNTER_SEED

_MSByte

0xFF

R/W

The MSB value of the counter

of the seed of the random

number generator used to

apply the BBE algorithm

during the CSMA algorithm

CSMA_CONFIG[2]

0x65

7:0

BU_COUNTER_SEED

_LSByte

0R/W

The LSB value of the counter

seed of the random number

generator used to apply the

BBE algorithm during the

CSMA algorithm

CSMA_CONFIG[1]

0x66

7:2

BU_PRESCALER[5:0] 000001

R/W

The prescaler value used to

program the back-off unit BU

1:0

CCA_PERIOD

Used to program the Tcca time

(64 / 128 / 256 / 512 × Tbit)

CSMA_CONFIG[0]

0x67

7:4

CCA_LENGTH[3:0]

0000

R/W

Used to program the Tlisten

time

Reserved

2:0

NBACKOFF_MAX

000

Max. number of back-off

cycles

TX_CTRL_FIELD[3]

0x68

7:0

TX_CTRL3

R/W

Control field value to be used

in TX packet as byte n.3

TX_CTRL_FIELD[2]

0x69

7:0

TX_CTRL2

R/W

Control field value to be used

in TX packet as byte n.2

TX_CTRL_FIELD[1]

0x6A

7:0

TX_CTRL1

R/W

Control field value to be used

in TX packet as byte n.1

TX_CTRL_FIELD[0]

0x6B

7:0

TX_CTRL0

R/W

Control field value to be used

in TX packet as byte n.0

Table 40.

Packet/protocol configuration registers (continued)

Address

Bit

Field Name

Reset

R/W

Description

SPIRIT1 데이터시트(PDF) 86 Page - STMicroelectronics

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