ATA5823 ATMEL Corporation, ATA5823 Datasheet - Page 37

• Manufacturer Part Number: ATA5823
• Description: Uhf Ask/fsk Transceiver Ata5823 Ata5824
• Manufacturer: ATMEL Corporation

12.2
12.3
12.3.1
4829D–RKE–06/06
TX/RX Data Buffer
Control Register
Control Register 1 (ADR 0)
The TX/RX data buffer is used to handle the data transfer during RX and TX operations.
To use the transceiver in different applications the transceiver can be configured by a microcon-
troller connected via the 4-wire serial interface.
Table 12-1.
Table 12-2.
Table 12-3.
Table 12-4.
Note:
IR1
IR1
PLL_MODE
0
0
1
1
0
0
1
1
FS
0
1
0
1
IR0
IR0
0
1
0
1
0
1
0
1
The Bits IR0 and IR1 have no function in FD mode
Control Register 1 (Function of Bit 7 and Bit 6 in RX Mode)
Function (RX Mode)
Pin IRQ is set to 1 if 1 received byte is in the TX/RX data buffer or a receiving error
occurred
Pin IRQ is set to 1 if 2 received bytes are in the TX/RX data buffer or a receiving error
occurred
Pin IRQ is set to 1 if 4 received bytes are in the TX/RX data buffer or a receiving error
occurred (default)
Pin IRQ is set to 1 if 12 received bytes are in the TX/RX data buffer or a receiving error
occurred
Control Register 1 (Function of Bit 7 and Bit 6 in TX Mode)
Pin IRQ is set to 1 if 1 byte still is in the TX/RX data buffer or the TX data buffer is empty
Pin IRQ is set to 1 if 2 bytes still are in the TX/RX data buffer or the TX data buffer is
empty
Pin IRQ is set to 1 if 4 bytes still are in the TX/RX data buffer or the TX data buffer is
empty (default)
Pin IRQ is set to 1 if 12 bytes still are in the TX/RX data buffer or the TX data buffer is
empty
Control Register 1 (Function of Bit 5)
Control Register 1 (Function of Bit 4)
Function (TX Mode)
Function
Adjustable range of FREQ: 3072 to 4095 (default), see
Adjustable range of FREQ: 0 to 8191, see
Function (RX Mode, TX Mode, FD Mode)
Selected frequency 433/868 MHz (default)
Selected frequency 315 MHz
Table 12-11 on page 39
ATA5823/ATA5824
Table 12-10 on page 39
37