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VSC7440 Datasheet(PDF) 370 Page - Microsemi Corporation

Part # VSC7440
Description  L2/L3 Enterprise Gigabit Ethernet Switch with 10 Gbps Links
PDF  444 Pages
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Manufacturer  MICROSEMI [Microsemi Corporation]
Direct Link  http://www.microsemi.com
Logo MICROSEMI - Microsemi Corporation

VSC7440 Datasheet(HTML) 370 Page - Microsemi Corporation

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VCore-III System and CPU Interfaces
VMDS-10492 VSC7440 Datasheet Revision 4.2
353
•
Normal GPIO mode, set GPIO_ALT[1][n], GPIO_ALT[0][n]=0.
When the MIIM slave mode is enabled through the VCore_CFG strapping pins, specific GPIO pins are
overtaken and used for the MIIM slave interface.
During reset, the VCore_CFG interface is sampled and used for VCore configuration. After reset, the
device is released, and the GPIOs can be used for output or inputs. For more information, see VCore-III
Configurations, page 306.
The following table maps the GPIO pins and available overlaid functions.
Table 260 •
GPIO Overlaid Functions
Name
Overlaid Function 1 Overlaid Function 2 Overlaid Function 3
Configuration or
Interface
GPIO_0
SG0_CLK
GPIO_1
SG0_DO
REFCLK2_CONF0
GPIO_2
SG0_DI
GPIO_3
SG0_LD
GPIO_4
IRQ0_IN
IRQ0_OUT
TWI_SCL_M0
GPIO_5
IRQ1_IN
IRQ1_OUT
TWI_SCL_M1
GPIO_6
UART_RXD
GPIO_7
UART_TXD
REFCLK2_CONF1
GPIO_8
SPI_nCS1
SFP0_SD
TWI_SCL_M2
GPIO_9
PCI_Wake
SFP1_SD
SPI_nCS2
GPIO_10
PTP_0
SFP2_SD
TWI_SCL_M3
GPIO_11
PTP_1
SFP3_SD
TWI_SCL_M4
GPIO_12
REF_CLK0
SFP4_SD
TWI_SCL_M5
GPIO_13
REF_CLK1
SFP5_SD
TWI_SCL_M6
GPIO_14
REF_CLK2
IRQ0_OUT
SPI_nCS3
GPIO_15
REF_CLK3
IRQ1_OUT
SPI_nCS4
GPIO_16
TACHO
SFP6_SD
SPI_nCS5
GPIO_17
PWM
TWI_SCL_M7
GPIO_18
PTP_2
SFP7_SD
SPI_nCS6
GPIO_19
PTP_3
SFP8_SD
SPI_nCS7
GPIO_20
UART2_RXD
SFP9_SD
SPI_nCS8
GPIO_21
UART2_TXD
REFCLK2_CONF2
GPIO_22
MIIM1_MDC
SFP10_SD
TWI2_SDA
MIIM_SLV_MDC
GPIO_23
MIIM1_MDIO
SFP11_SD
TWI2_SCL
MIIM_SLV_MDIO
GPIO_24
TWI_SDA
GPIO_25
TWI_SCL
SFP12_SD
TWI_SCL_M8
GPIO_26
TWI_SCL_M9
SFP13_SD
SPI_nCS9
GPIO_27
TWI_SCL_M10
SFP14_SD
SPI_nCS10
GPIO_28
TWI_SCL_M11
SFP15_SD
SPI_nCS11
GPIO_29
TWI_SCL_M12_AD
REFCLK2_SEL
GPIO_30
TWI_SCL_M13_AD
REFCLK0_CONF0



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