Radio Shack TRS-80 CR-510, Руководство по эксплуатации

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To make the Card Reader more versatile, you can specify a special format which retranslates the row
marks on the cards into different fields. These fields are then translated into the actual bytes that will
be transmitted by the Card Reader.
The format commands are:
ASC
ASCII
Converts the Hollerith card data into its ASCII equivalent. Each column translates into one byte of
data. Data that lie outside of the ASCII range are converted to a reverse slash (ASCII code 92).
See Appendix A for the Hollerith-to-ASCII conversion format.
BN1
BiNary 1
BNl is a binary representation of the card image. It separates the 12-chad/column (Hollerith format)
card image into two 6-bit bytes, reading the card from right to left, as follows:
Field One represents the first byte and Field Two represents the second byte. The least significant
row of each field (rows 12 and 4) corresponds to bit 0 of each byte. In addition, to fill out each byte,
bit 6 is set to 1, and bit 7 is set to 0. This provides a character range of 64 through 127
(HEX 40 to 7F).
BN2
BiNary 2
BN2 is a binary representation of the card image. It separates the 12-chad/column Hollerith card
data into two 6-bit fields, reading from left to right, as follows: