16 lines
994 B
Plaintext
16 lines
994 B
Plaintext
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┌────────────────────────────────────╖
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│ 5. Field of control signals. ║
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╘════════════════════════════════════╝
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Includes:
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I - signal of reading from external device;
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O - signal of record on external device;
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LCK - LOCK - signal for fixing of the daisy-chains conditions
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(it is used before vector read);
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IA - INTA - signal for acknowledgement of the interruption for
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device in daisy-chain and for reading from DB
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vector of the interruption;
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R - signal of the reading from memory;
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W - signal for record in memory;
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EWH - signal for record in higher bits of the address register;
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EWL - signal for record in lower bits of the address register.
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