ATA5811 datasheet(35/90 Pages) ATMEL

35 / 90 page

ATA5811/ATA5812 [Preliminary]

4689B–RKE–04/04

Control Register 2 (ADR 1)

Table 18. Control Register 1 (Function of Bit 2 and Bit 1)

OPM1

OPM0

Function

Idle mode (default)

TX mode

RX polling mode

RX mode

Table 19. Control Register 1 (Function of Bit 0)

T_MODE

Function

TX and RX function via TX/RX data buffer (default)

Transparent mode, TX/RX data buffer disabled, TX modulation data stream via

pin SDI_TMDI, RX modulation data stream via pin SDO_TMDO

Table 20. Control Register 2 (Function of Bit 7, Bit 6, Bit 5, Bit 4, Bit 3, Bit 2 and Bit 1)

FR6

FR5

FR4

FR3

FR2

FR1

FR0

Function

0000000

FREQ2 = 0

0000001

FREQ2 = 1

.......

1011000

FREQ2 = 88 (default)

.......

1111111

FREQ2 = 127

Note:

Tuning of f

RF LSB’s (total 9 bits), frequency trimming, resolution of fRF is fXTO/16384

which is approximately 800 Hz (see section “XTO”, Table 12 on page 24)

Table 21. Control Register 2 (Function of Bit 0 in RX Mode)

P_MODE

Function (RX Mode)

Pin IRQ is set to 1 if the Bit-check is successful (default)

No effect on pin IRQ if the Bit-check is successful

Table 22. Control Register 2 (Function of Bit 0 in TX Mode)

P_MODE

Function (TX Mode)

Manchester modulator on (default)

Manchester modulator off (NRZ mode)

ATA5811 Datasheet(PDF) 35 Page - ATMEL Corporation

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