April 1, 1981
RCHANNELMacro RCHANNEL Macro Use the RCHANNEL macro to generate a real channel block (RCHBLOK). An
RCHANNEL macro instruction must be coded to define each real channel in
theI/O configuration.
The RCHANNEL macro instructions describing the channels for your
installation may be in any order, but they must be contiguous and follow
all of theRCTLUNIT macro instructions in the module DMKRIO. The first
RCHANNEL macro instruction also generates the labelDMKRIOCH, which
indicates the start of the real channel blocks toCP. No name is specified for the RCHANNEL macro instruction; if a name is
specified, it is ignored. The RCHANNEL macro generates a nameby appending the channel address to the characters RCHAN. For example, if
the channel address is 2, the name RCHAN2 is generated.
The format of the RCHANNEL macro is:I Name Operation Operands 1---- 1 I I I RCHANNEL AD tRESS= address ,CHTYPE={SELECTOR ) MULTI PLEXOR BLKMPXR J ADDRESS=address is the real address of the channel. It is a hexadecimal number from
o to F.CHTYPE={SELECTOR } MULTIPLEXOR BLKMPXR is the type of channel. SELECTOR indicates a selector channel. MULTIPLEXOR indicates a byte-multiplexer channel. BLKMPXR indicates a block multiplexer channel.
The following examples illustrate the use of the RCHANNEL macro
instruction to describe a multiplexer channel whose address is0, a
selector channel whose address is 1, and a block multiplexer channel
whose address is 2.
RCHANNEL
RCHANNEL
RCHANNElADDRESS=O,CHTYPE=MULTIPLEXOR ADDRESS=1,CHTYPE=SELECTOR If any errors are detected, the real channel block is not generated.
This results in undefined symbols in the real control unit blocks for
this channel.Part 2. Defining Your VM/370 System 155
RCHANNEL
RCHANNEL macro instruction must be coded to define each real channel in
the
The RCHANNEL macro instructions describing the channels for your
installation may be in any order, but they must be contiguous and follow
all of the
RCHANNEL macro instruction also generates the label
indicates the start of the real channel blocks to
specified, it is ignored. The RCHANNEL macro generates a name
the channel address is 2, the name RCHAN2 is generated.
The format of the RCHANNEL macro is:
o to F.
The following examples illustrate the use of the RCHANNEL macro
instruction to describe a multiplexer channel whose address is
selector channel whose address is 1, and a block multiplexer channel
whose address is 2.
RCHANNEL
RCHANNEL
RCHANNEl
This results in undefined symbols in the real control unit blocks for
this channel.