ADLINK Express-IB - Manual (Page 23)

Express-IB Page 23
3.3.13. I2C Bus
Signal Pin # Description I/O PU/PD Comment
I2C_CK B33 General purpose I²C port clock output/input I/O OD 3.3VSB PU 2k2 3.3VSB
I2C_DAT B34 General purpose I²C port data I/O line I/O OD 3.3VSB PU 2k2 3.3VSB
3.3.14. General Purpose I/O (GPIO)
Signal Pin # Description I/O PU/PD Comment
GPO[0] A93 General purpose output pins. O 3.3V
GPO[1] B54 General purpose output pins. O 3.3V
GPO[2] B57 General purpose output pins. O 3.3V
GPO[3] B63 General purpose output pins. O 3.3V
GPI[0] A54 General purpose input pins.
Pulled high internally on the module. I 3.3V PU 10K 3.3V PU not in PICMG
suggest 10K
GPI[1] A63 General purpose input pins.
Pulled high internally on the module. I 3.3V PU 10K 3.3V PU not in PICMG
suggest 10K
GPI[2] A67 General purpose input pins.
Pulled high internally on the module. I 3.3V PU 10K 3.3V PU not in PICMG
suggest 10K
GPI[3] A85 General purpose input pins.
Pulled high internally on the module. I 3.3V PU 10K 3.3V PU not in PICMG
suggest 10K
3.3.15. Power And System Management
Signal Pin # Description I/O PU/PD Comment
PWRBTN# B12 Power button to bring system out of S5 (soft off), active on falling edge. I 3.3VSB PU 10k
3.3VSB
SYS_RESET# B49 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. I 3.3VSB PU 10k
3.3VSB
CB_RESET# B50 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. O 3.3VSB
PWR_OK B24 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. I 3.3V TBD by R&D
in CPLD Should have
weak pull up
SUS_STAT# B18 Indicates imminent suspend operation; used to notify LPC devices. O 3.3VSB
SUS_S3# A15 Indicates system is in Suspend to RAM state. Active-low output. An inverted
copy of SUS_S3# on the carrier board (also known as “PS_ON”) may be
used to enable the non-standby power on a typical ATX power supply. O 3.3VSB
SUS_S4# A18 Indicates system is in Suspend to Disk state. Active low output. O 3.3VSB
SUS_S5# A24 Indicates system is in Soft Off state. O 3.3VSB
WAKE0# B66 PCI Express wake up signal. I 3.3VSB PU 10k
3.3VSB