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Z8018233FSC Datasheet(PDF) 98 Page - Zilog, Inc. |
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Z8018233FSC Datasheet(HTML) 98 Page - Zilog, Inc. |
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98 / 109 page  3-98 Z80182/Z8L182 ZILOG INTELLIGENT PERIPHERAL PRELIMINARY Zilog DS971820600 General-Purpose I/O Port Timing This figure shows the timing for the Ports A, B and C. Parameters referred to in this figure appear in Tables D and E. A0-A7 /IORQ D0-D7 /WR /RD Port Previous Output Port Input Data 1 (In) Port Input Data 2 (In) Port Data 2 Out Port Data 1 (Out) (In) 'FF'H (Change Port To Input) Port Data Dir. Reg. Addr. (Input) Port Data Reg. Addr. (Input) Port Data Reg. I/O Port Timing (Input) F4 F5 F5 E2 F6 F3 E1 E2 F6 E1 F3 E4 T1 T2 TW T3 T1 T2 TW T3 T1 T2 TW T3 0 A0-A7 /IORQ D0-D7 /WR Port I/O Port Timing (Output) Port (Output) Port Output Data 1 (Out) Port Output Data 2 (Out) Port Output Data 2 (In) Port Output Data 1 (In) (In) 'OO'H (Change Port To Output) Port Data Dir. Reg. Addr. (Input) Port Data Reg. Addr. (Input) Port Data Reg. Addr. (Input) F1 F1 F1 E3 F2 F8 F9 F4 F2 F8 E3 F4 F9 E3 F2 F8 F4 Figure 107. PORT Timing |
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