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Z0847006PSG Datasheet(PDF) 11 Page - Zilog, Inc. |
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Z0847006PSG Datasheet(HTML) 11 Page - Zilog, Inc. |
11 / 330 page Z80 CPU Peripherals User Manual List of Figures UM008101-0601 xi Direct Memory Access (continued) Figure 50. CE/WAIT Multiplexer ... ......... ......... ......133 Figure 51. Simultaneous Transfer Multiplexer .. ......... ......133 Figure 52. Simultaneous Transfer ... ......... ......... ......134 Figure 53. Delaying the Leading Edge of MWR . ......... ......135 Figure 54. Data Bus Buffer Control Example ... ......... ......138 Figure 55. DMA-SIO Environment . . ......... ......... ......142 Figure 56. Connecting DMA to Demultiplexed Address/Data Buses 145 Figure 57. Z8000/Z80 Peripheral Interface ..... ......... ......147 Figure 58. DMA Bus-Master Gate (Byte or Burst Modes Only) ....149 Figure 59. CPU-to-DMA Write Cycle Requirements ...... ......151 Figure 60. CPU-to-DMA Read Cycle Requirements ....... ......152 Figure 61. Sequential Memory-to-I/O Transfer, Standard Timing (Searching is Optional) ... ......... ......... ......154 Figure 62. Sequential I/O-to-Memory Transfer, Standard Timing (Searching is Optional) ... ......... ......... ......155 Figure 63. Simultaneous Memory-to-I/O Transfer (Burst and Continuous Mode) ....... ......... ......... ......... ......156 Figure 64. Simultaneous Memory-to-I/O Transfer (Byte Mode) ....157 Figure 65. Bus Request and Acceptance Timing . ......... ......159 Figure 66. Bus Release in Byte Mode ......... ......... ......160 Figure 67. Bus Release on End-of-Block (Burst and Continuous Modes) ...... ......... ......... ......160 Figure 68. Bus Release on Match (Burst and Continuous Modes) . .161 Figure 69. Bus Release on Not Ready (Burst Mode) ....... ......162 Figure 70. RDY Line in Byte Mode .. ......... ......... ......163 Figure 71. RDY Line in Burst Mode . ......... ......... ......164 Figure 72. RDY Line in Continuous Mode ..... ......... ......165 Figure 73. Variable-Cycle and Edge Timing .... ......... ......166 |
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