-Each MPCC controller uses 2 entries in the SCB for download/handshake,
-and command/response interrupts.
-These entries start at 0xa0 for the 1st controllers download/handshake
-interrupts thru 0xaf, and 0xb0 for the 1st controllers command/response
-interrupts thru 0xbf.
+Each MPCC controller uses 2 consecutive entries in the SCB for
+download/handshake, and command/response interrupts. These entries
+start at 0xa0 for the 1st controllers download/handshake interrupts
+and 0xa1 for the 1st controllers command/response.
+.PP
+The MPCC controller requires a firmware download to be completed
+before it can function. See \fIdlmpcc\fP(8) and \fImpcctab\fP(4)
+for specific information on how to configure and download the
+firmware into the MPCC controller.
+.PP
+A maximum of 16 MPCC communication controllers can be supported.