HT9480 datasheet(34/57 Pages) HOLTEK

34 / 57 page

Description of the special

programmed function bits (SPF)

The following features can be selected by appro-

priate programming of the specially pro-

grammed function bits:

• SPF00, SPF01

Receiver (BS1) establishment time (for the

BS2~BS3 options, refer to SPF2~SPF5)

00: 7.81ms/512

53.33ms/1200/2400

01: 15.63ms/512

6.67ms/1200/2400

10: 31.25ms/512

13.33ms/1200/2400

11: 62.50ms/512

26.67ms/1200/2400

• SPF02, SPF03

RF dc level adjustment (BS2) enable time

00: 7.81ms/512

1.67ms/1200/2400

01: 11.71ms/512

6.67ms/1200/2400

10: 15.63ms/512

11.67ms/1200/2400

11: 19.53ms/512

13.33ms/1200/2400

• SPF04, SPF05

PLL (BS3) establishment time

00: 0ms/512 0ms/1200/2400

01: 31.25ms/512

40.00ms/1200/2400

10: 46.87ms/512

40.00ms/1200/2400

11: 62.50ms/512

53.33ms/1200/2400

• SPF06, SPF07

Duplicate the call suppress time-out and out-

of-range hold-off time-out

00: 30s/512/1200

15s/2400

01: 60s/512/1200

30s/2400

10: 120s/512/1200

60s/2400

11: 240s/512/1200

120s/2400

• SPF08, SPF09

Call termination criteria combination method

and message data deformatting method

0x : Any two consecutive codewords or the

codeword directly following the address

codeword in error

10 : Any single codeword in error

11 : Any two consecutive codewords in error

x0 : Numeric data deformation

x1 : Numeric data deformation on function

code 00 only

• SPF10, SPF11

Tone generation frequency prescaler divider

00: Prescaler factor 1

01: Prescaler factor 2

10: Prescaler factor 4

11: Prescaler factor 8

HT9480

23th Feb ’98

HT9480 датащи(PDF) 34 Page - Holtek Semiconductor Inc

HT9480 датащи(HTML) 34 Page - Holtek Semiconductor Inc

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

датащи скачать

ссылки URL