AS3930 datasheet(14/33 Pages) AMSCO

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AS3930

Data Sheet - D e t a i l e d D e s c r i p t i o n

R1<2>

EN_PAT2

Double wakeup pattern correlation

R1<1>

EN_WPAT

Data correlation enable

R1<0>

EN_RTC

Crystal oscillator enable

R2<7>

S_ABSH

Data slicer threshold reduction

R2<6:5>

W_PAT

Pattern correlation tolerance (see Table 19)

R2<4:2>

000

Reserved

R2<1:0>

S_WU1

Tolerance setting for the stage wakeup (see Table 13)

R3<7>

HY_20m

Data slicer hysteresis

if HY_20m = 0 then comparator hysteresis = 40mV

if HY_20m = 1 then comparator hysteresis = 20mV

R3<6>

HY_POS

Data slicer hysteresis only on positive edges (HY_POS=0, hysteresis on both

edges, HY_POS=1, hysteresis only on positive edges)

R3<5:3>

FS_SCL

100

Data slices time constant (see Table 17)

R3<2:0>

FS_ENV

000

Envelop detector time constant (see Table 16)

R4<7:6>

T_OFF

Off time in ON/OFF operation mode

T_OFF=00

1ms

T_OFF=01

2ms

T_OFF=10

4ms

T_OFF=11

8ms

R4<5:4>

D_RES

Antenna damping resistor (see Table 15)

R4<3:0>

0000

Gain reduction (see Table 14)

R5<7:0>

TS2

01101001

nd Byte of wakeup pattern

R6<7:0>

TS1

10010110

st Byte of wakeup pattern

R7<7:5>

T_OUT

000

Automatic time-out (see Table 20)

R7<4:0>

T_HBIT

01011

Bit rate definition (see Table 18)

R8<2:0>

T_AUTO

000

Artificial wake-up

T_AUTO=000

No artificial wake-up

T_AUTO=001

1 sec

T_AUTO=010

5 sec

T_AUTO=011

20 sec

T_AUTO=100

2 min

T_AUTO=101

15min

T_AUTO=110

1 hour

T_AUTO=111

2 hour

R9<6:0>

000000

Reserved

R10<4:0>

RSSI

RSSI channel

R11<4:0>

Reserved

Table 7. Default Values of Registers

Name

Type

Default

Value

Description

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