Rainbow-electronics ATA6824 Manual do Utilizador descarregar pdf (Página 9)

4931C–AUTO–09/06

ATA6824 [Preliminary]

Figure 5-3. Definition of Bus Timing Parameters

The recessive BUS level is generated from the integrated 30 kΩ pull-up resistor in series with an

active diode. This diode prevents the reverse current of VBUS during differential voltage

between VSUP and BUS (V

BUS

SUP

Bit

Rec(min)

Dom(min)

Rec(max)

Thresholds of

receiving node 2

Thresholds of

receiving node 1

Dom(max)

Bus_dom(max)

Bus_rec(min)

Bus_dom(min)

rx_pdr(2)

rx_pdf(2)

rx_pdf(1)

rx_pdr(1)

Bus_rec(max)

Bit

(Transceiver

supply

of transmitting

node)

RXD

(output of receiving Node 2)

RXD

(output of receiving Node 1)

TXD

SIO Bus Signal

(input to transmitting Node)

1 2 3 4 5 6 7 8 9 10 11 12 13 14 ... 21 22

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