ATA6613-EK Atmel, ATA6613-EK Datasheet - Page 12

• Manufacturer Part Number: ATA6613-EK
• Description: BOARD DEMO LIN-MCM FOR ATA6613
• Manufacturer: Atmel

Specifications of ATA6613-EK

• Main Purpose: Interface, LIN + MCU
• Embedded: Yes, MCU, 8-Bit
• Utilized Ic / Part: ATA6613
• Primary Attributes: LIN-SBC (System-Basis-Chip) Transceiver, LIN 2.0, Voltage Regulator, Window Watchdog
• Secondary Attributes: 16 kB Flash, 4 Power Modes: Pre-Normal, Normal, Sleep, Silent, 48-QFN
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

A falling edge at the LIN pin followed by a dominant bus level maintained for a certain time
period (t
) and the following rising edge at the LIN pin (see
Figure 3-4 on page
12) result in a
bus
remote wake-up request. The device switches from Silent Mode to Fail-safe Mode. The
remote wake-up request is indicated by a low level at the RXD pin to interrupt the microcon-
troller (see
Figure 3-4 on page
12). EN high can be used to switch directly to Normal Mode.
Figure 3-4.
LIN Wake-up from Silent Mode
Bus wake-up filtering time
t
Fail-safe mode
Normal mode
bus
LIN bus
Node in silent mode
RXD
High
Low
High
TXD
Watchdog
Watchdog off
Start watchdog lead time t
d
VCC
Silent mode 5V/50 mA
Fail safe mode 5V/50 mA
Normal mode
voltage
regulator
EN High
EN
NRES
Undervoltage detection active
3.3.20.3
Sleep Mode
A falling edge at EN when TXD is low switches the IC into Sleep Mode. The TXD Signal has to
be logic low during the Mode Select window
(Figure 3-5 on page
13). In order to avoid any
influence to the LIN-pin during switching into sleep mode it is possible to switch the EN up to
3.2µs earlier to LOW than the TXD. Therefore, the best and easiest way are two falling edges
at TXD and EN at the same time.The transmission path is disabled in Sleep Mode. The supply
current I
from V
is typically 10µA.
VSsleep
Batt
Atmel ATA6612/ATA6613
12
9111H–AUTO–01/11