HCS360 datasheet(11/40 Pages) MICROCHIP

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DS40152F-page 11

HCS360

3.5.12

IND: INDEPENDENT MODE

The Independent mode can be used where one

encoder is used to control two receivers. Two counters

(SYNC_A and SYNC_B) are used in Independent

mode. As indicated in Table 3-9, function codes 1 to 7

use SYNC_A and 8 to 15 SYNC_B.

3.5.13

INFRARED MODE

The Independent mode also selects IR mode. In IR

mode function codes 12 to 15 will use SYNC_B. The

PWM output signal is modulated with a 40 kHz carrier

(see Table 3-8). It must be pointed out that the 40 kHz

is derived from the internal clock and will therefore vary

with the same percentage as the baud rate. If IND = 0,

SYNC_A is used for all function codes. If IND = 1, Inde-

pendent mode is enabled and counters for functions

are used according to Table 3-9.

TABLE 3-8:

IR MODULATION

TABLE 3-9:

FUNCTION CODES

Note 1: IR mode

Basic Pulse

800us

400us

200us

100us

(800

μs)

(32x)

(400

μs)

(16x)

(200

μs)

(8x)

Period = 25

μs

(100

μs)

(4x)

IND = 0

IND = 1

Comments

Counter

If SEED = 1, transmit seed after delay.

If SEED = 1, transmit seed immediately.

B(1)

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