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Z86017 bảng dữ liệu(PDF) 42 Page - Zilog, Inc. |
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Z86017 bảng dữ liệu(HTML) 42 Page - Zilog, Inc. |
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42 / 138 page ![]() Z86017/Z16017 PCMCIA Interface Solution Product Specification PS012002-1201 Addressing Modes 28 The four on-chip address maps are: • Memory_Map_1 • Memory_Map_2 • Memory_Map_3 • PCMCIA_ATA/IDE Map Memory_Map_1, _2 and _3 support PCMCIA Memory/IO Mode. The chip can be configured in PCMCIA Mode either by: • Pulling the PC_ATA/HOE pin High during RESET; or by • Writing 10 in Override bits (bits 3, 2) in the Interface Configuration Register 0 (address 00h), and 0 in bits 0, 1, 2, 6 of the Interface Configuration Register 02 (address 03h). After placing the device into PCMCIA Mode, each Map can be configured independently through its set of configuration registers. Each Memory Map contains a set of Configuration Registers consisting of: • Window Control Register • Window Start Address LSB Register • Window Start/Range Address MSB • Window Range Address LSB The PCMCIA_ATA/IDE Map enables chip operation in PCMCIA_ATA/ IDE mode. When in this mode, the chip responds to different types of accesses, depending on the content of the following registers: • Interface Configuration Register 02, address 03h (bits 0, 1, 6) • Interface Configuration Register 03, address 04h (bits 0, 1, 2, 3) • PCMCIA Exception Status Register, address 071h (bit 0) |
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