ATA5823 ATMEL Corporation, ATA5823 Datasheet - Page 47

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

13. Transceiver Configuration
13.1
Figure 13-1. Read TX/RX Data Buffer
4829D–RKE–06/06
Command: Read TX/RX Data Buffer
SDI_TMDI
SDO_TMDO
SCK
CS
MSB
Command: Read TX/RX Data Buffer
No. Bytes in the TX/RX Data Buffer
Figure 12-5. Timing Flow Status Bit DVCC_RST
The configuration of the transceiver takes place via a 4-wire serial interface (CS, SCK,
SDI_TMDI, SDO_TMDO) and is organized in 8-bit units. The configuration is initiated with a 8-bit
command. While shifting the command into pin SDI_TMDI, the number of bytes in the TX/RX
data buffer are available on pin SDO_TMDO. The read and write commands are followed by one
or more 8-bit data units. Each 8-bit data transmission begins with the MSB.
During a RX operation the user can read the received bytes in the TX/RX data buffer
successively.
LSB
MSB
IDLE, TX, RX, RX Polling,
or pin N_PWR_ON = 0
Read Status Register
VDVCC < 1.6 V (typ)
Pin PWR_ON = 1
DVCC_RST = 1;
RX Data Byte 1
FD Mode
?
?
X
Y
Y
LSB
N
N
MSB
RX Data Byte 2
X
ATA5823/ATA5824
OFF_Mode
LSB
47