Receive Interrupt Timing - Analog Devices adsp-2100 Manual

RFS
DR
SCLK
Figure 5.32 SPORT Interrupt or Autobuffer Timing, Receive 4-Bit Words (No
Companding)
The transmit interrupt essentially means that it is all right to write a value
to the TX register.

5.13.5 Receive Interrupt Timing

The receiver portion of the SPORT latches data on the DR pin on the
falling edges of SCLK.
Receive interrupt timing differs from transmit interrupt timing. The
receive interrupt or autobuffer request occurs only after an entire word is
RFS
DR
SCLK
FIgure 5.33 SPORT Interrupt or Autobuffer Timing, Receive 4-Bit Words (Companding
Enabled)
Serial Ports
BIT3 BIT2 BIT1
Interrupt or Autobuffer Request
BIT3 BIT2 BIT1
Interrupt or Autobuffer Request
5
BIT0
BIT0
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