ATA5811_06 ATMEL [ATMEL Corporation], ATA5811_06 Datasheet - Page 33

• Manufacturer Part Number: ATA5811_06
• Description: UHF ASK/FSK TRANSCEIVER
• Manufacturer: ATMEL [ATMEL Corporation]

7.6
8. Microcontroller Interface
9. Digital Control Logic
9.1
4689F–RKE–08/06
2-Battery Application
Register Structure
The supply voltage range is 4.4V to 6.6V and VAUX is connected to an inductive supply.
Figure 7-6.
The microcontroller interface is a level converter which converts all internal digital signals which
are referred to the DVCC voltage, into the voltage used by the microcontroller. Therefore, the pin
VSINT has to be connected to the supply voltage of the microcontroller.
This makes it possible to use the internal voltage regulator/switch at pin VSOUT as in
on page 6
to the supply voltage of the microcontroller as in
The configuration of the transceiver is stored in RAM cells. The RAM contains a 16
TX/RX data buffer and a 6
interface (CS, SCK, SDI_TMDI, SDO_TMDO).
The 1
8-bit status register is not part of the RAM and is readable via the 4-wire serial interface.
and
2-Battery Application with Inductive Emergency Supply
Figure 4-1 on page 8
RF-Transceiver
Digital Control
Logic
ATA5811/ATA5812
SDO_TMDO
8-bit control register and is write and readable via a 4-wire serial
DEM_OUT
SDI_TMDI
NRESET
VSOUT
VSINT
AVCC
DVCC
VAUX
SCK
CLK
VS1
VS2
IRQ
CS
or to connect the microcontroller and the pin VSINT directly
Figure 3-1 on page
4.4V to 6.6V
ATA5811/ATA5812
VS
OUT
OUT
OUT
IN
IN
IN
IN
Microcontroller
7.
Figure 2-1
8-bit
33