ATAR080 datasheet(45/68 Pages) ATMEL

45 / 68 page

ATAR080

4675D–4BMCU–12/04

Changing the directional mode (TX/RX) should not be performed during the transfer of

an MCL telegram. One should wait until the end of the telegram which can be detected

using the SSI interrupt (IFN = 1) or by interrogating the ACT status.

A 9-bit telegram, once started will always run to completion and will not be prematurely

terminated by the SIR bit. So, if the SIR-bit is set to '1' in mid telegram, the SSI will com-

plete the current transfer and terminate the dialog with an MCL stop condition.

Figure 47. Example of MCL Transmit Dialog

Figure 48. Example of MCL Receive Dialog

7 6 5 4 3 21

7 6 54 3 2 10 A

msb

lsb

tx data 1

tx data 2

msb

lsb

Write STB

(tx data 1)

SRDY

ACT

Interrupt

(IFN = 0)

Interrupt

(IFN = 1)

Write STB

(tx data 2)

SIR

SDD

Stop

76 5 4 3 2 17 6 5 43 2 10 A

msb

lsb

tx data 1

rx data 2

msb

lsb

Write STB

(tx data 1)

SRDY

ACT

Interrupt

(IFN = 0)

Interrupt

(IFN = 1)

0 A

Read SRB

(rx data 2)

SIR

SDD

Start

Stop

ATAR080 Datasheet(PDF) 45 Page - ATMEL Corporation

ATAR080 Datasheet(HTML) 45 Page - ATMEL Corporation

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68

Datasheet Download

Link URL