Development Board Gpio Usage - Intel EP80579 Manual

General Purpose I/O (GPIO) and Interrupt Interface—Intel
Product Line
Table 75. GPIO Pin Definitions (Sheet 2 of 2)
Signal(s)
GPIO[27]
GPIO[28]
GP29_SATA1GP
GPIO[30]
GPIO[31]
GPIO[33]
GPIO[34]
GPIO[40]
GP41_LDRQ[1]#
GPIO[48]
17.1.1

Development Board GPIO Usage

The Development Board has all unused GPIO signals connected to headers. Some
multiplexed GPIO signals may not be connected to the headers if they are used for
alternate functions.
Table 76
Table 76. Development Board GPIO Usage (Sheet 1 of 2)
Pin Name
GPIO[0]
GPIO[1]
GP2_PIRQE_N
GP3_PIRQF_N
GP4_PIRQG_N
GP5_PIRQH_N
GPIO[6]
GPIO[7]
GPIO[8]
GPIO[9]
GPIO[10]
SMBALERT_N
GPIO[12]
GPIO[13]
GPIO[14]
GPIO[15]
GP16_IRQ24
GP17_IRQ25
®
Intel EP80579 Integrated Processor Product Line
Order Number: 320068-005US
I/O Type
(Default
Mode)
I/O
I/O
I
I
I
I/O
I/O
I
I
O
provides a list of how the GPIO signals are used in the Development Board.
I/O
(Default
Mode)
I T_GPIO[0]
I T_GPIO[1]
I T_GPIO[2]
I T_GPIO[3]
I T_GPIO[4
I T_GPIO_5_FPGA_IN_5
I T_GPIO_6_FPGA_IN_6
I T_GPIO_7_FPGA_IN_7
I T_GPI8_SLEEP_WAKE_N
I T_GPIO_9_FPGA_IN_9
I T_GPIO_10_FPGA_IN_10
I IMCH_SMBALERT_N
I T_GPIO_12_FPGA_IN_12
I T_GPIO_13_FPGA_IN_13
I T_GPIO_14_FPGA_IN_14
I T_GPIO_15_FPGA_IN_15
I T_GPO16_HSS0_INT_N
I/O T_GP017
®
EP80579 Integrated Processor
Function
Alternate
(Default
Mode
Mode)
GPIO IRQ39
GPIO IRQ30
GPI SATA1GP
GPI IRQ31
GPI IRQ32
GPIO IRQ33
GPIO IRQ34
GPI IRQ35
LDRQ[1]# GPIO[41]
GPO N/A
Mode of
Signal Name Operatio
n
GPI
GPI
GPI
GPI
GPI
GPI
GPI
GPI
GPI
GPI
GPI
GPI
GPI
GPI
GPI
GPI
IRQ24
GPIO
Description
Multiplexed with IOAPIC IRQ39
Multiplexed with IOAPIC IRQ30
Multiplexed with SATA1GP
Multiplexed with IOAPIC IRQ31.
Multiplexed with IOAPIC IRQ32.
Multiplexed with IOAPIC IRQ33.
Multiplexed with IOAPIC IRQ34.
Multiplexed with IOAPIC IRQ35.
LDRQ[1]# multiplexed with
GPIO[41]
Unmultiplexed
Function
Header
Header
Header
Header
Header
FPGA_IN_5
FPGA_IN_6
FPGA_IN_7
Sleep Wake
FPGA_IN_9
FPGA_IN_10
SMBus Alert
FPGA_IN_12
FPGA_IN_13
FPGA_IN_14
FPGA_IN_15
HSS0_INT_N
T_GP017_HSS1/SPI Boot Select
May 2010
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