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COM200221 датащи(PDF) 77 Page - SMSC Corporation |
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COM200221 датащи(HTML) 77 Page - SMSC Corporation |
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77 / 82 page ![]() 10 Mbps ARCNET (ANSI 878.1) Controller with 2Kx8 On-Chip RAM Datasheet SMSC COM20022I Page 77 Revision 09-27-07 DATASHEET 4. “Write” means write signal and “Read” means read signal. “Write/Read” means write or read signal. At INTEL MODE, write signal is nWR and read signal is nRD. At MOTOROLA MODE, write signal is nDS when DIR is Low and the read signal is nDS when DIR is High. 5. Conditions of CASE1W, CASE2W, CASE1R and CASE2R are shown below; CASE1W : BUSTMG pin = High CASE2W : BUSTMG pin = Low CASE1R : BUSTMG pin = High and RBUSTMG bit = 0 CASE2R : BUSTMG pin = Low or RBUSTMG bit = 1 |
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