ATA6616-P3QW Atmel, ATA6616-P3QW Datasheet - Page 14

• Manufacturer Part Number: ATA6616-P3QW
• Description: TXRX MULTICHIP MOD LIN SIP 38QFN
• Manufacturer: Atmel
• Series: AVR® ATA66 LIN-SBCr

Specifications of ATA6616-P3QW

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 16MHz
• Connectivity: I²C, LIN, SPI, UART/USART, USI
• Peripherals: Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
• Number Of I /o: 16
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 512 x 8
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 11x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 38-VQFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

3.5
3.5.1
3.5.2
3.5.3
3.5.4
14
Wake-up Scenarios from Silent or Sleep Mode
Atmel ATA6616/ATA6617
Remote Wake-up via Dominant Bus State
Local Wake-up via Pin WAKE
Local Wake-up via Pin KL_15
Wake-up Source Recognition
A voltage less than the LIN Pre_Wake detection V
receiver.
A falling edge at the LIN pin followed by a dominant bus level V
time period (t
switches from Silent or Sleep Mode to Fail-safe Mode. The VCC voltage regulator is/remains
activated, the INH pin is switched to high, and the remote wake-up request is indicated by a
low level at the RXD pin to generate an interrupt for the microcontroller. A low level at the LIN
pin in the Normal Mode starts the bus wake-up filtering time, and if the IC is switched to Silent
or Sleep Mode, it will receive a wake-up after a positive edge at the LIN pin.
A falling edge at the WAKE pin followed by a low level maintained for a certain time period
(t
wake-up request is indicated by a low level at the RXD pin to generate an interrupt in the
microcontroller and a strong pull down at TXD. When the WAKE pin is low, it is possible to
switch to Silent or Sleep Mode via pin EN. In this case, the wake-up signal has to be switched
to high > 10µs before the negative edge at WAKE starts a new local wake-up request.
A positive edge at pin KL_15 followed by a high voltage level for a certain time period (> t
results in a local wake-up request. The device switches into the Fail-safe Mode. The extra long
wake-up time ensures that no transients at KL_15 create a wake-up. The local wake-up
request is indicated by a low level at the RXD pin to generate an interrupt for the microcon-
troller and a strong pull down at TXD. During high-level voltage at pin KL_15, it is possible to
switch to Silent or Sleep Mode via pin EN. In this case, the wake-up signal has to be switched
to low > 250µs before the positive edge at KL_15 starts a new local wake-up request. With
external RC combination, the time is even longer.
The device can distinguish between a local wake-up request (Wake or KL_15 pins) and a
remote wake-up request (via LIN bus). The wake-up source can be read on the TXD pin in
Fail-safe Mode. A high level indicates a remote wake-up request (weak pull up at the TXD
pin); a low level indicates a local wake-up request (strong pull down at the TXD pin). The
wake-up request flag (signalled on the RXD pin) as well as the wake-up source flag (signalled
on the TXD pin) is immediately reset if the microcontroller sets the EN pin to high (see
3-3 on page 10
source flag is stored and signalled in Fail-safe Mode at the TXD pin.
WAKE
) results in a local wake-up request. The device switches to Fail-safe Mode. The local
BUS
and
) and a rising edge at pin LIN result in a remote wake-up request. The device
Figure 3-4 on page
11) and the IC is in Normal Mode. The last wake-up
LINL
at the LIN pin activates the internal LIN
BUSdom
maintained for a certain
9132D–AUTO–12/10
Figure
KL_15
)