TDA5250D2 Datasheet, PDF (27/97 Pages) Infineon Technologies AG – ASK/FSK 868MHz Wireless Transceiver

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TDA 5250 D2
preliminary
Functional Description
Data Transfer Write Mode:
To start the communication the EN line has to be set to LOW. The desired sub
address byte and data bytes have to follow. The subaddress (00H...0FH)
determines which of the data bytes are transmitted. At the end of data transition
the EN must be HIGH.
Data transfer Read Mode:
To start the communication in the read mode, the EN line has to be set to LOW
followed by the sub address to read (80H, 81H). Afterwards the device is ready
to read out data. At the end of data transition EN must be HIGH.
Bus Data Format 3-wire Bus Mode
Table 3-11 3-wire Bus Write Mode
MSB SUB ADDRESS (WRITE)
00H...08H, 0DH, 0EH,0FH
LSB MSB DATA IN X...0 (X=7 or 15)
S7 S6 S5 S4 S3 S2 S1 S0 DX ... D5 D4 D3 D2
LSB
D1 D0
Table 3-12 3-wire Bus Read Mode
MSB SUB ADDRESS (READ)
80H, 81H
LSB MSB DATA OUT FROM
SUB ADDRESS
LSB
S7 S6 S5 S4 S3 S2 S1 S0 R7 R6 R5 R4 R3 R2 R1 R0
Register Definition
Sub Addresses Overview
ADC
RSSI [8 Bit]
I²C - SPI
INTERFACE
FILTER
LPF [8 Bit]
CONTROL
CONFIG [16 Bit]
STATUS [8 Bit]
CLK_DIV [8 Bit]
BLOCK_PD [16Bit]
WAKEUP
ON_TIME [16 Bit]
OFF_TIME [16 Bit]
COUNT_TH1 [16Bit]
COUNT_TH2 [16Bit]
RSSI_TH3 [8 Bit]
Figure 3-8 Sub Addresses Overview
XTAL
XTAL_TUNE [16Bit]
FSK [16Bit]
XTAL_CONFIG [8 Bit]
register_overview.wmf
Wireless Components
3 - 17
Specification, July 2002