User`s guide

66 DC 900-1516D
ICP2432 User’s Guide for OpenVMS Alpha (DLITE Interface)
4.2.4.2 IO$_LOADMCODE
The IO$_LOADMCODE function loads a software block onto the ICP2432.
Condition Values Returned
SS$_NORMAL
Request completed successfully
SS$_BADPARAM
Parameter is incorrect
SS$_CANCEL
Request canceled
SS$_ILLBLKNUM
ICP load address is incorrect
SS$_INSFMAPREG
DMA error occurred
SS$_TIMEOUT
Request timed out; no response from ICP
The transfer count and device-specific information of the I/O Status Block (IOSB) are
not used.
Parameters
P1
Packet address (must be on a longword boundary)
P2
Packet size (less than 1 megabyte)
P3
0
P4
ICP load address
P5
0
P6
0
Description
The driver accesses user virtual address space (specified by the P1 parameter) to access
the packet. The packet must be set on a longword boundary. For details of the ICP load
address, see the ICP2432 Hardware Description and Theory of Operation.
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Condition,
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Description
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