28 (55) BRUKER BIOSPIN Technical Manual Version 001
Description
For a detailed description see Texas Instruments Host Port Interface Reference
Guide (SPRU578C).
Pipeline Register
The pipeline register is used by the software to monitor and control the DPP activ-
ities. It is available for the DPP and the host computer and used so that the regis-
ter can read and write at the same time. When the DSP writes to the register an
interrupt on the host computer is activated that requests this data to be read. The
same occurs in reverse.
Table 5.12: DSP HPI Control Register CPU View
Bits 31 .. 20 19 18 17 16 15 .. 4 3 2 1 0
Field Reserved Reserved HRDY HINT DSPIN HWOB
CPU
read/
write
R R R R/W R/W R/W
Reset
State
0 0 1 0 0 0
Table 5.13: DPP Pipeline Register
Bits 31 .. 10 9 8.. 5 4 3 2 1 0
Field not
used
ERROR not
used
INTR OUTPUT INPUT IDLE ACTIVE
Reset
State
0 0 0 0 0 0 0 1 0 0
Table 5.14: Field Description of the Mailbox Register
Field Value Description
0 1 ACTIVE, DPP is up and Firmware is running.
1 1 IDLE, DPP is up but nothing to do.
2 1 INPUT, DPP read from input buffer.
3 1 OUTPUT, DPP write to output buffer.
4 1 INTR, DPP has send Interrupt.
9 1 ERROR, DPP detected error, info in mailbox.
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