N.A.T. MAMC-XLINK, Техническое справочное руководство

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Meikon
MAMC-XLINK – Technical Reference Manual
4.2 Definition of ATmega645 Port Pins
ATmega645 port pins are used to communicate with the PCI Express External Cabling
Interface and to set up some Re-Driver configuration as follows:
Table 4: ATmega645 Port Pin Usage (Port A)
Signal Function ATmega645 Port A Pin Description
/HS_SW PA7 Hot Swap Switch
PWRGD PA6 Power Good Indicator
/IALERT PA5 Power Good Indicator
GA_PALLUP PA4 driver for Geographical Address
sensing
GA2 PA3 Geographical Address 2
GA1 PA2 Geographical Address 1
GA0 PA1 Geographical Address 0
/AMC_ENABLE PA0 Enable AMC module
Table 5: ATmega645 Port Pin Usage (Port B)
Signal Function ATmega645 Port B Pin Description
/CPRSNT PB7 PCIe Cable Interface present
indicator
not used PB6 pin is unconnected
/PWRON PB5 Power On PCIe Cable Interface
control pin
/PERST PB4 PCIe Reset Output
MISO PB3 SPI programming interface
MOSI PB2 SPI programming interface
SCLK PB1 SPI programming interface
not used PB0 pin is unconnected
Table 6: ATmega645 Port Pin Usage (Port C)
Signal Function ATmega645 Port C Pin Description
EN_A PC7 enable Port A programmability
SEL_A6 PC6 SEL6 Re-Driver Port A
SEL_A5 PC5 SEL5 Re-Driver Port A
SEL_A4 PC4 SEL4 Re-Driver Port A
SEL_A3 PC3 SEL3 Re-Driver Port A
SEL_A2 PC2 SEL2 Re-Driver Port A
SEL_A1 PC1 SEL1 Re-Driver Port A
SEL_A0 PC0 SEL0 Re-Driver Port A