ATA5830N-PNQW Atmel, ATA5830N-PNQW Datasheet - Page 14
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ATA5830N-PNQW
Manufacturer Part Number
ATA5830N-PNQW
Description
Manufacturer
Atmel
Datasheet
1.ATA5830N-PNQW.pdf
(27 pages)
Specifications of ATA5830N-PNQW
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2. System Operation Modes
14
Atmel ATA5830/ATA5830N
The scope of this section is to give an overview of the Atmel
modes, shown in
Figure 2-1.
After connecting the supply voltage to the VS pin, the Atmel ATA5830 always starts in OFF-
Mode. All internal circuits are disconnected from the power supply. Therefore no SPI
communication is supported. The Atmel ATA5830 can be woken up by activating the PWRON
pin or one of the NPWRONx pins. This triggers the power-on sequence. After firmware initial-
ization the Atmel ATA5830 reaches the IDLEMode.
The IDLEMode is the basic system mode supporting SPI communication and transitions to all
other operation modes. There are two options of the IDLEMode to be configured in the
EEPROM settings:
The transmit mode (TXMode) allows for data transmission on one of the preconfigured chan-
nels for e.g. RKE, TPM, RS. It is usually enabled by SPI command, or directly after power-on,
when selected in the EEPROM setting.
The receive mode (RXMode) provides data reception on one of the preconfigured channels.
The precondition for data reception is a valid preamble. The receiver is continuously searching
for a valid telegram and receives the data if all preconfigured checks are successfully passed.
The RXMode is usually enabled by SPI command, or directly after power-on, when selected in
the EEPROM setting.
• IDLEMode(RC) with low power consumption using the Fast RC (FRC) oscillator for
• IDLEMode(XTO) with active crystal oscillator for high accuracy clock output or timing
processing
measurements
EXTR
WDR
Operation Modes Overview
Figure
System Initialization
2-1.
PollingMode
OFFMode
Power-on
Init done
IDLEMode
TXMode
®
ATA5830 supported operation
RXMode
TCMode
9208DS–RKE–07/11