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Z8018233FSC 数据表(PDF) 43 Page - Zilog, Inc. |
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Z8018233FSC 数据表(HTML) 43 Page - Zilog, Inc. |
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43 / 109 page ![]() 3-43 Z80182/Z8L182 ZILOG INTELLIGENT PERIPHERAL PRELIMINARY Zilog DS971820600 SYSTEM CONTROL REGISTERS IL7 IL6 - - - 000 R/W 00000 R/W Interrupt Vector Low Addr 33H Bit Upon Reset - - IL5 IL R/W R/W Figure 46. Interrupt Vector Low Register TRAP UFO ITE2 ITE1 ITE0 001 11 0 R/W 01 R/W /INT Enable 2, 1, 0 Addr 34H Bit Upon Reset - - - ITC R/W R R/W R/W Undefined Fetch Object TRAP Figure 47. INT/TRAP Control Register REFE REFW - CYC1 CYC0 111 11100 R/W Cycle Select Addr 36H Bit Upon Reset - - Refresh Wait State Refresh Enable - RCR R/W R/W R/W R/W CYC1, 0 00 01 10 11 Interval of Refresh Cycle 10 states 20 states 40 states 80 states Figure 48. Refresh Control Register |
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