Integrated Micro-Controller (Imc) - AMD SP5100 Data Book

AMD SP5100 Databook
Ball Name
(Default Function
in Blue)
IDE_RST#/
F_RST#/
IMC_GPO3
IMC_GPIO[7:4]
IMC_GPIO[9:8]
IMC_PWM0 ◊ /
IMC_GPIO10
SCL2 ◊ /
IMC_GPIO11
SDA2 ◊ /
IMC_GPIO12
SCL3_LV ◊ /
IMC_GPIO13
SDA3_LV ◊ /
IMC_GPIO14
IMC_PWM1 ◊ /
IMC_GPIO15
IMC_PWM2 ◊ /
IMC_GPO16 §
IMC_PWM3 ◊ /
IMC_GPO17 §
IMC_GPIO[41:18]
Notes: For information on how to configure the GPIO pins, see the AMD SP5100 Register Reference
Guide. Notice that the IMC GPIOs can also be used as general purpose GPIOs.
* The "default function" and the "default state" refer to function and state of the pin after
deassertion of PCI host bus reset (A_RST#), i.e., right after system power up or reset.
◊ The IMC PWM and SMBus functions are not available if the IMC is disabled via the strap setting
on AZ_RST#.
§ To avoid corrupting the ROM type strap settings, IMC_GPO[17:16] must not be driven from an
external source until after RSMRST# had been de-asserted.
7.16

Integrated Micro-Controller (IMC)

Note: Integrated Micro-Controller (IMC) interface advanced features are not supported by the SP5100.
However, the GPIOs on the IMC interface can be used like any other GPIO pins, with IMC enabled or
46
Voltage and
Type
Domain
3.3V_S5
OD
(5-V tolerance)
3.3V_S5
I/O
(5-V tolerance)
I/O 3.3V_S5
I/O 3.3V_S5
3.3V_S5
I/O
(5-V tolerance)
3.3V_S5
I/O
(5-V tolerance)
I/O 3.3V_S5
I/O 3.3V_S5
I/O 3.3V_S5
3.3V_S5
I/O
(5-V tolerance)
3.3V_S5
I/O
(5-V tolerance)
I/O 3.3V_S5
Signal Description
Default
Internal
Type
Resistor
(Default
(Default in
State in
Blue)
Blue)
10-kΩ PU
Output
10-kΩ PD
Low
10-kΩ PU
Input
10-kΩ PD
10-kΩ PU
Input
10-kΩ PD
10-kΩ PU
Input
10-kΩ PD
10-kΩ PU
Input
10-kΩ PD
10-kΩ PU
Input
10-kΩ PD
10-kΩ PU
Input
10-kΩ PD
10-kΩ PU
Input
10-kΩ PD
10-kΩ PU
Input
10-kΩ PD
10-kΩ PU
Input
10-kΩ PD
10-kΩ PU
Input
10-kΩ PD
10-kΩ PU
Input
10-kΩ PD
44409 Rev. 1.70 October 10
Functional Description
IDE Reset/
Integrated Microcontroller
(IMC) GPO 3
Integrated Microcontroller
(IMC) GPIO [7:4]
Integrated Microcontroller
(IMC) GPIO [9:8]
Integrated Microcontroller
(IMC) PWM 0/
IMC GPIO 10
SMBus Clock 2/
Integrated Microcontroller
(IMC) GPIO 11
SMBus Data 2/
Integrated Microcontroller
(IMC) GPIO 12
Low Voltage SMBus Clock 3/
Integrated Microcontroller
(IMC) GPIO 13
Low Voltage SMBus Data 3 /
Integrated Microcontroller
(IMC) GPIO 14
Integrated Microcontroller
(IMC) PWM 1/
IMC GPIO 15
Integrated Microcontroller
(IMC) PWM 2/
IMC GPO 16
Integrated Microcontroller
(IMC) PWM 3/
IMC GPO 17
Integrated Microcontroller
(IMC) GPIO [41:18]