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AMD SP5100 Databook
Pin Name
TEMPIN3*/TALERT#/
GPIO64
VIN0/GPIO53
VIN1/GPIO54
VIN2/GPIO55
VIN3/GPIO56
VIN4/GPIO57
VIN5/GPIO58
VIN6/GPIO59
VIN7/GPIO60
AVDD
AVSS
*Note: Temperature monitoring function is NOT supported on the SP5100. TEMPIN[3:0] can only be
used as GPIOs.
7.11
SPI ROM Interface
SPI ROM is supported up to 33 MHz. Maximum ROM size supported is 16 MB. Burst read and fast read
cycles are not supported.
Pin Name
SPI_DI/GPIO12
SPI_DO/GPIO11
SPI_CLK/GPIO47
SPI_HOLD#/GPIO31
SPI_CS1#/GPIO32
SPI_CS2#/IMC_GPIO2
7.12
Northbridge / Power Management Interface
Pin Name
Type
LPC_PME#/
I/O
GEVENT3#
LPC_SMI#/
I/O
EXTEVNT1#
PCI_PME#/
I/O
GEVENT4#
PWR_BTN#
I
38
Type
Voltage
I/O
S5_3.3V
I/O
3.3 V
I/O
3.3 V
I/O
3.3 V
I/O
3.3 V
I/O
3.3 V
I/O
3.3 V
I/O
3.3 V
I/O
3.3 V
3.3 V (Analog Power)
-
-
Analog Ground
Type
Voltage
I/O
S5_3.3V
I/O
S5_3.3V
I/O
S5_3.3V
I/O
S5_3.3V
I/O
S5_3.3V
I/O
S5_3.3V
Voltage
Functional Description
S5_3.3V
LPC PME# Input / General Event 3
3.3 V
LPC SMI# Input / External Event 1
(5-V tolerance)
S5_3.3V
PCI PME# Input / General Event 4
Power Button: The Power Button will cause an SMI# or SCI to
S5_3.3V
indicate a system request to go to a sleep state. If the system is
already in a sleep state, this signal will cause a wake event. If
PWRBTN# is pressed for more than 4 seconds, this will cause an
unconditional transition (power button override) to the S5 state with
only the PWRBTN# available as a wake event. Override will occur
even if the system is in the S1 state. This signal has an internal pull-
up resistor.
Signal Description
Functional Description
Temperature Monitor Input 3* / Temperature has
reached cautionary state / GPIO 64
Voltage Monitor Input 0 / GPIO 53
Voltage Monitor Input 1 / GPIO 54
Voltage Monitor Input 2 / GPIO 55
Voltage Monitor Input 3 / GPIO 56
Voltage Monitor Input 4 / GPIO 57
Voltage Monitor Input 5 / GPIO 58
Voltage Monitor Input 6 / GPIO 59
Voltage Monitor Input 7 / GPIO 60
Hardware Monitor Analog PWR
Hardware Monitor Analog GND
Functional Description
SPI Data In / GPIO 12
SPI Data Output / GPIO 11
SPI Clock / GPIO 47
SPI HOLD# / GPIO 31
SPI Chip Select# / GPIO 32
Alternate SPI chip select#/IMC GPIO 2
44409 Rev. 1.70 October 10
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