Texas Instruments 990 Operation Manual page 165

~-------
~
945255-9701
The transfer toggle specifies the type of data transfer to be performed during the programming
cycle. The user may specify programming PROM from memory, loading memory from PROM or
ROM, or saving control information for a memory or PROM data configuration on the Standard
Control Information Cassette. (Refer to paragraph 7.6.1 for further explanation of this process.)
The user may specify no data transfer if only a memory and PROM or ROM comparison or
display are desired.
If
the transfer toggle is set to
I
or
2,
data transfer occurs in the memory or
PROM/ROM region specified by the memory bounds, bit string width, and mapping parameters.
If
the compare toggle is set, the memory and PROM or ROM regions specified by the memory
and PROM/ROM bounds, bit string width, and mapping parameters are compared. Any compare
errors found are displayed in the following format.
>Mxxxx.yy=zz Raaaa.bb=cc
The fields for memory and PROM or ROM are the same as defined for the display toggles. One
entry of compared data preceded by a greater than character is displayed per line. The greater
than character alerts the user to the compare error. Each entry contains the memory and PROM
or ROM contents which failed to compare.
The user may terminate any display by pressing the escape (ESC) key. Control of the program
returns to the monitor. Also, if the transfer toggle is set to 3 to Save control information on the
Standard Control Information Cassette and the user decides not to
~ave
the information, the user
may reply to the PROM Programmer questions
MEM ID?
or
ROM ID?
with an ESC character. (Refer to paragraph 7.6.1.) The ESC character causes an exist.
Examples:
.PP,TS, 1, 0, 0, 0
.PP,130
MOOOO.OO-OO M0002.00=OO M0004.00-00
M0006.0~=04
MOOOS.OO-Ot MOOOA.OO-OO MOOOC.OO=OO MOOOE.OO=OO
In this example, the memory display toggle is set. When the programming cycle is initiated, the
memory region is displayed. The mapping parameters for this region are defined with an initial
displacement of 2, bit increment of 10
16 ,
and number of iterations set to 8
16 •
The bit string
width is set to 4. This example shows that each memory byte address displayed contains the bit
string (shown to the right of the equal sign) in bits 2, 3, 4 and 5 of the memory byte. Memory
location 6 contains the following bit string: xxO IOOxx.
PP,T:S, 0,
t,
0, 0
.PP, 130
ROOOO.OO-OF
R0004.00-0F
ROOO:3.00-0F
ROOOC.OO-OC
R0001.00-0F R0002.00=OF ROOO:3.00=OF
R0005.00-0F R0006.00-0F ROOO? OO=OF
R0009.00=OO ROOOA.00=01 ROOOB.OO=Ol
ROOOD.00=0:3 ROOOE.00=0:3
ROOOF. 00=00
7-15
Digital Systems Division ,