ATA6628 データシートの表示（PDF） - Atmel Corporation
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ATA6628 Datasheet PDF : 36 Pages
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4. Modes of Operation
Figure 4-1. Modes of Operation
b
e
Unpowered Mode
(See Section 4.5)
b
a
Fail-safe Mode
VCC: 3.3V/5V
with undervoltage monitoring
Communication: OFF
Watchdog: ON
a: VS > VSthF
b: VS < VSthU
c: Bus wake-up event
d: Wake up from WAKE or KL_15 pin
e: NRES switches to low
b
b
c+d+e
EN = 1
Normal Mode
VCC: 3.3V/5V
with undervoltage detection
watchdog: ON
High level at
pin SP_MODE:
High-speed Mode
Transceiver ≤ 200kBaud
LIN 2.1
Transceiver
≤ 20kBaud
TXD time-out
timer on
EN = 0
TXD = 1
EN = 1
EN = 0
TXD = 0
Go to silent command
Go to normal command
Go to sleep command
EN = 1
c+d
Silent Mode
VCC: 3.3V/5V
with undervoltage monitoring
Communication: OFF
Watchdog: OFF
Sleep Mode
VCC: switched off
Communication: OFF
Watchdog: OFF
Table 4-1. Table of Modes
Mode of
Operation
Unpowered
Fail-safe
Normal/ High-
speed
Silent
Sleep
Transceiver
Off
Off
On
Off
Off
Pin LIN
Recessive
Recessive
TXD
depending
Recessive
Recessive
VCC
On
3.3V/5V
3.3V/5V
3.3V/5V
0V
Pin Mode
GND
GND
GND
GND
GND
Watchdog
On
On
On
Off
Off
Pin
WD_OSC
On
1.23V
1.23V
0V
0V
Pin INH
Off
On
On
Off
Off
4.1 Normal Mode
This is the normal transmitting and receiving mode. The voltage regulator is active and can source up to 85mA. The
undervoltage detection is activated. The watchdog needs a trigger signal from NTRIG to avoid resets at NRES. If NRES is
switched to low, the IC changes its state to Fail-safe Mode.
ATA6628/ATA6630 [DATASHEET]
7
9117I–AUTO–10/14
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