
AT88RF1354 SPI User Guide For CryptoRF
®
2.12.2 Example
String Decode > O0007 Host sends seven bytes thru microcontroller to AT88RF1354 serial port.
>
09
AT88RF1354 Write Data Buffer Command.
>
00
Starting address.
>
04
Length "L" of data to be written in bytes.
>
12
Data 1
>
34
Data 2
>
12
Data "L - 1"
>
34
Data "L"
Wait for AT88RF1354 ISTAT pin state.
ISTAT goes High.
The AT88RF1354 buffer has data ready. Data must be read before the next command can be issued.
String Decode >
I0001 Host gets one byte from AT88RF1354 buffer.
>
01
AT88RF1354 Response: $01 (Acknowledge).
ISTAT stays Low.
The AT88RF1354 buffer is empty. The AT88RF1354 will now accept a new command.
2.12.3 Operation
Write the internal 256 byte RAM buffer starting at the Address specified.
2-20
8586A—RFID—5/09