CASLineSignal

• Base type OctetString
• Range 1 — 1

This textual convention defines line signals indicating the ABCD bits of CAS signaling, which represent the states of lines. Each of A, B, C or D represents by two bit value : b(bit)1 | b0 | value ------------------------ 0 | 0 | 0 0 | 1 | 1 1 | 0 | 2 ( don't care ) 1 | 1 | 3 ( don't care ) The ABCD line signals are occupied in one byte, and in order: . A : bit 7, and 6 . B : bit 5, and 4 . C : bit 3, and 2 . D : bit 1, and 0 A | B | C | D ----------------------------------------- | b1 | b0 | b1 | b0 | b1 | b0 | b1 | b0 | ----------------------------------------- MSB 7 LSB 0