ATAM894_14 datasheet(73/97 Pages) ATMEL

No. de pieza	ATAM894

Descripción Electrónicos	Read Protection for the EEPROM Program Memory

PDF	97 Pages

Scroll/Zoom	100%

Fabricante Electrónico	ATMEL [ATMEL Corporation]

Página de inicio	http://www.atmel.com

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73 / 97 page

4679D–4BMCU–05/05

ATAM894

Figure 6-51.

Manchester Modulation 1

Combination Mode 4: Manchester Modulation 2

SSI mode 1:

8-bit shift register internal data output (SO) to the Timer 2

modulator stage

Timer 2 mode 3:

8-bit compare counter and 4-bit prescaler

Timer 2 output mode 5:

The modulator 2 of Timer 2 modulates the SSI data output

to Manchester code

The 4-bit stage can be used as prescaler for the SSI to generate the stop signal for modulator 2.

The SSI has a special mode to supply the prescaler with the shift clock. The control output signal

(OMSK) of the SSI is used as stop signal for the modulator. This is an example for a 12-bit

Manchester telegram:

Figure 6-52.

Manchester Modulation 2

TOG2

T2O

8-bit SR data

Bit 7

Bit 0

Bit 7

Bit 0

Data: 00110101

000

Counter 2/1 = Compare Register 2/1 (= 4)

Bit 7 Bit 6

Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0

SCLI

Buffer full

SIR

MSM

Timer 2

Mode 3

SCL

Counter 2/1

OMSK

T2O

ATAM894 Datasheet(PDF) 73 Page - ATMEL Corporation

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