Digi NS9750 Bedienungsanleitung Seite 8

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System-level interfaces
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NS9750B-A1 Datasheet 03/2006
System-level interfaces
Figure 1 shows the NS9750B-A1 system-level hardware interfaces.
Figure 1: System-level hardware interfaces
NS9750B-A1 interfaces
Ethernet MII/RMII interface to an external
PHY
System Memory interface
Glueless connection to SDRAM
Glueless connection to buffered
PC100 DIMM
Glueless connection to SRAM
Glueless connection to Flash memory
or ROM
PCI muxed with CardBus interface
USB host or device interface
I
2
C interface
50 GPIO pins muxed with:
Four 8-pin-each serial ports, each
programmable to UART or SPI
1284 port
Up to 24-bit TFT or STN color and
monochrome LCD controller
Tw o e x t ern a l D M A c h a n n e l s
Four external interrupt pins
programmed to rising or falling edge,
or to high or low level
Sixteen 16-bit or 32-bit programmable
timers or counters
Two control signals to support USB
host
JTAG development interface
Clock interfaces for crystal or external
oscillator
System clock
USB clock
Clock interface for optional LCD external
oscillator
Power and ground
NS9750B-A1
I
2
C
Serial
1284
USB Host control
LCD
Ext. DMA control
Ext. IRQ
Timers/Counters
Clocks & Reset
JTAG
Ethernet
Controls
Data
Address
PCI/Cardbus
Power & Ground
GPIO
System
Memory/
Peripheral
USB Host or Device
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