Texas Instruments 990 Operation Manual page 168

~-------
~
945255-9701
If a two- or three-level data configuration mapping has been specified and the user wishes to
specify a data configuration using only level one mapping, the looping parameters for levels two
and three must be reset to the default values. If three-level mapping has been previously specified
and level two mapping will be used, the looping parameters for level three must be reset to the
default values. This can be accomplished by typing the MI subcommand and level, leaving off
any of the looping parameters. The following commands:
.PP,MI,2
.PP,MI,3
reset the looping parameters for levels two and three and allow the user to proceed with level
one programming.
Error message:
PP02 Parameter value
outsid~
the permissible range.
Examples:
.PP,MI,1,10,100,4
.PP,MI,2,O,2
The first example defines the mapping parameters as follows:
Loop level
Bit increment
Maximum iteration count
Bit displacement
=
1
=
10
16
=
16
10
=
100
16
=
256
10
=4
The second example defines the mapping parameters as follows:
Loop level
Bit increment
Maximum iteration count
Bit displacement
=2
=0
=2
=
0 (default)
7.5.3.7 Define PROM/ROM Data Configuration Mapping Parameters (RI). The Define PROM/
ROM Data Configuration Mapping Parameters subcommand defines the control information
needed to determine the addresses of the bit strings in, the PROM/ROM data configuration to be
used in the programming cycle.
Syntax definition:
PP {o' ... } RI {o' ... } <Ieveln> [{o' ... } [yrn>][{o' ... } [<mm>] [{o' ... } <drn>]]]
Parameters:
level n PROM/ROM data configuration mapping level indicator.
Its value is 1, 2 or 3. Required parameter.
7-18
Digital Systems Division