Chapter 3 – DFI HM960-HM86 User Manual

Page 24

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Chapter 3 Hardware Installation

24

Chapter 3

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Signal

Pin#

Pin Type

Pwr Rail /Tolerance

HM960-QM87/HM86

Carrier Board

Description

VGA_RED

B89

O Analog

Analog

PD 150 TO GND

PD 150R,connect to VGA connector with EMI

Red for monitor. Analog output

VGA_GRN

B91

O Analog

Analog

PD 150 TO GND

PD 150R,connect to VGA connector with EMI

Green for monitor. Analog output

VGA_BLU

B92

O Analog

Analog

PD 150 TO GND

PD 150R,connect to VGA connector with EMI

Blue for monitor. Analog output

VGA_HSYNC

B93

O CMOS

3.3V / 3.3V

Connect to VGA connector with a3.3V Buffer

Horizontal sync output to VGA monitor

VGA_VSYNC

B94

O CMOS

3.3V / 3.3V

Connect to VGA connector with a 33V Buffer

Vertical sync output to VGA monitor

VGA_I2C_CK

B95

I/O OD CMOS 3.3V / 3.3V

PU 2.2K TO 3V3

Connect to VGA connector with a 3.3V to 5V

DDC clock line (I2C port dedicated to identify VGA monitor capabilities)

VGA_I2C_DAT

B96

I/O OD CMOS 3.3V / 3.3V

PU 2.2K TO 3V3

Connect to VGA connector with a 3.3V to 5V

DDC data line.

Signal

Pin#

Pin Type

Pwr Rail /Tolerance

HM960-QM87/HM86

Carrier Board

Description

SER0_TX

A98

O CMOS

3.3V/5V

PD 4.7K TO GND

General purpose serial port 0 transmitter

SER0_RX

A99

I CMOS

3.3V/5V

PU 47K TO 3V3

General purpose serial port 0 receiver

SER1_TX

A101

O CMOS

3.3V/5V

PD 4.7K TO GND

General purpose serial port 1 transmitter

SER1_RX

A102

I CMOS

3.3V/5V

PU 47K TO 3V3

General purpose serial port 1 receiver

Signal

Pin#

Pin Type

Pwr Rail /Tolerance

HM960-QM87/HM86

Carrier Board

Description

I2C_CK

B33

I/O OD CMOS 3.3V Suspend/3.3V

PU 2.2K TO 3V3_DU_EC

General purpose I2C port clock output

I2C_DAT

B34

I/O OD CMOS 3.3V Suspend/3.3V

PU 2.2K TO 3V3_DU_EC

General purpose I2C port data I/O line

SPKR

B32

O CMOS

3.3V / 3.3V

Output for audio enunciator - the "speaker" in PC-AT systems.
This port provides the PC beep signal and is mostly intended for
debugging purposes.

WDT

B27

O CMOS

3.3V / 3.3V

Output indicating that a watchdog time-out event has occurred.

FAN_PWNOUT

B101

O OD CMOS

3.3V / 12V

Fan speed control. Uses the Pulse Width Modulation (PWM) technique to control the fan's RPM.

FAN_TACHIN

B102

I OD CMOS

3.3V / 12V

PU 10K TO 3V3

Fan tachometer input for a fan with a two pulse output.

TPM_PP

A96

I CMOS

3.3V / 3.3V

PU 0 TO 3V3_DU

NC PU 4.7K TO 3V3_SB

Trusted Platform Module (TPM) Physical Presence pin. Active high.
TPM chip has an internal pull down. This signal is used to indicate
Physical Presence to the TPM.

Signal

Pin#

Pin Type

Pwr Rail /Tolerance

HM960-QM87/HM86

Carrier Board

Description

PWRBTN#

B12

I CMOS

3.3V Suspend/3.3V

PU 10K TO 3V3_DU_EC

PU 4.7K TO 3V3_SB

A falling edge creates a power button event. Power button events can
be used to bring a system out of S5 soft off and other suspend states,
as well as powering the system down.

SYS_RESET#

B49

I CMOS

3.3V Suspend/3.3V

PU 10K TO 3V3_DU

NC PU 4.7K TO 3V3_SB

Reset button input. Active low request for Module to reset and reboot.
May be falling edge sensitive. For situations when SYS_RESET# is
not able to reestablish control of the system, PWR_OK or a power
cycle may be used.

CB_RESET#

B50

O CMOS

3.3V Suspend/3.3V

Reset output from Module to Carrier Board. Active low. Issued by
Module chipset and may result from a low SYS_RESET# input, a low
PWR_OK input, a VCC_12V power input that falls below the minimum
specification, a watchdog timeout, or may be initiated by the Module
software.

PWR_OK

B24

I CMOS

3.3V / 3.3V

PU 10K TO 3V3

Power OK from main power supply. A high value indicates that the
power is good. This signal can be used to hold off Module startup to
allow Carrier based FPGAs or other configurable devices time to be
programmed.

Serial Interface Signals Descriptions

Miscellaneous Signal Descriptions

Power and System Management Signals Descriptions

VGA Signals Descriptions

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