Status reporting
Pro8000 system / page
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3.5.10 Block Function Condition Register (BFC)
At present state only bit 0 and 1 of the BFC have any function:
Bit 0 indicates if the block function mode is active.
Bit 1 shows if the programmed “ELCH”-function has finished its work (=high).
3.5.11 Block Function Event Register (BFR)
The bits of this register hold the status changes that occurred during operation. So
each bit of the BFC sets the according bit of the BFR.
The BFR can be read but not set. Reading clears the BFR.
3.5.12 Block Function Enable Register (BFE)
The BFE enables via “AND” functions which block message is allowed to set the bit
“BFR” in the Status Byte Register.
3.5.13 Service request by detecting SRQ
If an SRQ is asserted (see section 3.5.4) bit 6 of the STB is set to logical 1, so that
the controller can detect by serial polling, which device asserted the SRQ.
3.5.14 Service request by *STB? command
If the controller does not "listen" to SRQs at all, the service request can be detected
by reading the status byte with the command "*STB?".
If bit 6 is logical 1, a service request was asserted.
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