Rainbow-electronics ATA6630 Manual de usuario descargar pdf (Pagina 8)

8

9117C–AUTO–10/09

ATA6628/ATA6630 [Preliminary]

4. Modes of Operation

Figure 4-1. Modes of Operation

Unpowered Mode

(See Section 4.5)

a: V

S

> VS

thF

b: V

S

< VS

thU

c: Bus wake-up event

d: Wake up from WAKE or KL_15 pin

Fail-safe Mode

VCC: 3.3V/5V/50 mA

with undervoltage monitoring

Communication: OFF

Watchdog: ON

Silent Mode

VCC: 3.3V/5V/50 mA

with undervoltage monitoring

Communication: OFF

Watchdog: OFF

Sleep Mode

VCC: switched off

Communication: OFF

Watchdog: OFF

Go to silent command

a

TXD = 0

EN = 0

TXD = 1

EN = 0

EN = 1

EN = 1

EN = 1

b

b

b

c + d + e

e

c + d

b

Normal Mode

VCC: 3.3V/5V/50 mA

with undervoltage detection

watchdog: ON

High level at

pin SP_MODE:

High-speed Mode

Transceiver ≤ 115 kBaud

LIN 2.1

Transceiver

≤ 20 kBaud

TXD time-out

timer on

Go to sleep command

e: NRES switches to low

Go to normal command

Table 4-1. Table of Modes

Mode of

Operation Transceiver Pin LIN V

CC

Pin Mode Watchdog Pin WD_OSC Pin INH

Unpowered Off Recessive On GND On On Off

Fail-safe Off Recessive 3.3V/5V GND On 1.23V On

Normal/

High-speed

On TXD depending 3.3V/5V GND On 1.23V On

Silent Off Recessive 3.3V/5V GND Off 0V Off

Sleep Off Recessive 0V GND Off 0V Off

1 2 3 4 5 6 7 8 9 10 11 12 13 ... 33 34

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