Manual

T48C862-R4

4551B–4BMCU–02/03

Figure 49. DCG Output Signals

Timer 2 Mode Register 2

(T2M2)

Address: "7"hex - Subaddress: "2"hex

If one of these output modes is used the T2O alternate function of Port 4 must also be

activated.

DCGIN

DCGO0

DCGO1

DCGO2

DCGO3

Bit 3Bit 2Bit 1Bit 0

T2TOP T2OS2 T2OS1 T2OS0 Reset value: 1111b

T2TOP Timer 2 Toggle Output Preset

This bit allows the programmer to preset the Timer 2 output T2O.

T2TOP = 0, resets the toggle outputs with the write cycle (M2 = 0)

T2TOP = 1, sets toggle outputs with the write cycle (M2 = 1)

Note: If T2R = 1, no output preset is possible

T2OS2 Timer 2 Output Select bit 2

T2OS1 Timer 2 Output Select bit 1

T2OS0 Timer 2 Output Select bit 0

Output Mode T2OS2 T2OS1 T2OS0 Clock Output (POUT)

1 1 1 1 Toggle mode: a Timer 2 compare match

toggles the output flip-flop (M2) -> T2O

2 1 1 0 Duty cycle burst generator 1: the DCG output

signal (DCG0) is given to the output and

gated by the output flip-flop (M2)

3 1 0 1 Duty cycle burst generator 2: the DCG output

signal (DCGO) is given to the output and

gated by the SSI internal data output (SO)

4 1 0 0 Biphase modulator: Timer 2 modulates the

SSI internal data output (SO) to Biphase

code

5 0 1 1 Manchester modulator: Timer 2 modulates

the SSI internal data output (SO) to

Manchester code

6 0 1 0 SSI output: T2O is used directly as SSI

internal data output (SO)

7 0 0 1 PWM mode: an 8/12-bit PWM mode

8 0 0 0 Not allowed