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Trans lation Fo rmats ProM aster 25 00 User Manua l D-1 1 A paper tape generated by a programmer contains a 5- byte, arrow- shaped header followed by a null and a 4-nibble by te count. The sta rt code, an 8-bit rubout, f…

Translation Formats

D-10 ProMaster 2500 User Manual

Formatted Binary Format, Code 10

Data transfer in the Formatted Binary format consists of a stream of 8-bit

data bytes preceded by a byte count and followed by a sumcheck, as

shown in Figure D-3. The Formatted Binary format does not have

addresses.

The programmer stores incoming binary data upon receipt of the start

character. Data are stored in RAM starting at the first RAM address

specified by the Memory Begin Address parameter and ending at the last

incoming data byte.

Figure D-3

An Example of Formatted Binary

Format

2 BYTE HEX SUMCHECK (02FB)

2 NULLS

BINARY DATA

BIT

RUBOUT (START CODE)

4 NIBBLE HEX BYTE COUNT

1 NULL

ARROW

HEAD

0020 HEX

(32 DECIMAL)

HIGH

ORDER

LOW

ORDER

0075-2

Translation Formats

ProMaster 2500 User Manual D-11

A paper tape generated by a programmer contains a 5-byte, arrow-

shaped header followed by a null and a 4-nibble byte count. The start

code, an 8-bit rubout, follows the byte count. The end of data is signaled

by two nulls and a 2-byte sumcheck of the data field. Refer to Figure D-4.

If the data output has a byte count GREATER than or equal to 64K, an

alternate arrow-shaped header is used. This alternate header (shown

below) is followed by an 8-nibble byte count, sandwiched between a null

and a rubout. The byte count shown here is 40000H (256K decimal). If the

byte count is LESS than 64K, the regular arrowhead is used instead. Data

that are input using Formatted Binary format will accept either version of

this format.

In addition, a third variation of this binary format is accepted on

download. This variation does not have an arrowhead and is accepted

only on input. The rubout begins the format and is immediately followed

by the data. There is no byte count or sumcheck.

DEC Binary Format, Code 11

Data transmission in the DEC Binary format is a stream of 8-bit data

words with no control characters except the start code. The start code is

one null preceded by at least one rubout. The DEC Binary format does

not have addresses.

Figure D-4

An Example of Formatted Binary

Format

RUBOUT (FF)

8 NIBBLE BYTE COUNT

NULL (00)

ARROW

HEAD

0483-2

DATA

Translation Formats

D-12 ProMaster 2500 User Manual

Spectrum Format, Codes 12 or 13

In this format, bytes are recorded in ASCII codes with binary digits

represented by 1s and 0s. During output, each byte is preceded by a

decimal address.

Figure D-5 shows sample data bytes coded in the Spectrum format. Bytes

are sandwiched between the space and carriage return characters and are

normally separated by line feeds. The start code is a nonprintable STX,

CTRL-B (or hex 02), and the end code is a nonprintable ETX, CTRL-C (or

hex 03).

Note: Data without a start or end code may be input to or output from the

programmer by use of the alternate data translation format code, 13

Figure D-5

An Example of Spectrum Format

0000 11111111

0001 11111111

0002 11111111

0003 11111111

0004 11111111

0005 11111111

0006 11111111

0007 11111111

0008 11111111

0009 11111111

0010 11111111

0011 11111111

0012 11111111

0013 11111111

0014 11111111

0015 11111111

End code is a

nonprintable EXT

4 or 8 data bits appear between the

space and the carriage return

Address Code is 4

decimal digits

Optional Start Code

is a nonprintable STX

0077-2