1. Introduction
ÛZIATECH
9
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Bi-directional multi-mode printer interface
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Optional local high speed IDE disk drive
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Serial I/O (two 16550 compatible ports)
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Optional local floppy drive interface
•
Flash file system (up to 4 Mbytes)
•
COM1/COM2 (16550 compatible)
STD-80 or STD 32 Single Master Architecture
The ZT 8907 supports additional memory and I/O through the STD bus. In an STD-80
architecture, all 16-bit data transfers are automatically reduced to 8-bit transfers for
complete backwards compatibility with STD-80 boards. In an STD 32 architecture, the
data transfers are dynamically adjusted to support 8-bit and 16-bit boards.
See Chapter 3, "
," for a detailed description of the ZT 8907 interface
to the STD bus architecture.
STD 32 Multiple Master Architecture
The ZT 8907 can be configured to operate in a multiple master architecture as a
permanent master or a temporary master. With this architecture, up to seven ZT 8907
boards share STD bus memory and I/O resources.
See Chapter 3, "
," for a detailed description of the ZT 8907 interface
to the STD bus architecture.
FEATURES
•
STD 32 bus compatible
•
Occupies single STD bus slot
•
Single and multiple master operation
•
25 to 100 MHz 486SX/DX4 operation
•
Numeric coprocessor support (486DX4)
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8 Kbytes of CPU cache (16 Kbytes on DX4)
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4, 8, 16, or 32 Mbytes of DRAM memory (EDO)
•
2 or 4 Mbytes of flash memory
•
Optional 32-bit PCI bus video support
•
Standard AT
®
peripherals include: