HCS365T datasheet(10/34 Pages) MICROCHIP

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HCS365

DS41109D-page 10

Preliminary

TABLE 3-3:

DEVICE OPTIONS

3.1

Dual Encoder Operation

The HCS365 contains two transmitter configurations

with separate serial numbers, encoder keys, discrimi-

nation values, counters, and seed values. This means

that the HCS365 can be used as two independent

encoders. The code word is calculated using one of two

possible encoder configurations. Most options for code

word and modulation formats can be different from

Encoder 1 and Encoder 2. However, LED and RF

transmitter options have to be the same. The SHIFT

input pin is used to select between the encoder config-

urations. A low on the SHIFT pin will select Encoder 1

and a high will select Encoder 2.

Symbol

Address

16:Bits

Description(1)

Reference

Section

WAKE

3F: ---- --10

Wake-up(1)

Value

4.1

No Wake-up

75 ms 50%

50 ms 33.3%

100 ms 16.7%

CNTSEL

3F: ---- -2--

Counter Select

16 bits = 0

20 bits = 1

3.2.1

VLOWL

3F: ---- 3---

Low Voltage Latch Enable

Disable = 0

Enable = 1

3.2.3.1

VLOWSEL

3F: ---4 ----

Low Voltage Trip Point Select(2)

2.2 V = 0

3.2V = 1

3.2.3.1

PLLSEL

3F: --5- ----

PLL Interface Select

ASK = 0

FSK = 1

5.2

MTX

3D: ---- --10

Minimum Code Words

Value

2.0

TSEL

3D: --54 ----

Time-out Select(1)

Value

Time(s)

2.0

0.8

3.2

12.8

25.6

DUAL

3D:-----2--

Dual Encoder Enable

Disable = 0

Enable = 1

RFENO

3D: ----3---

RF Enable Output Select

Disable = 0

Enable = 1

Note

All Timing values vary ±10%.

2: Voltage thresholds are ±150 mV.

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