Table 1: Connector Descriptions - Broadcom BCM91125PCIX User Manual

User Manual
07/02/04
The following table shows the BCM91125PCIX connectors.
Board ID
J7
J9
J10
J13
J15
J16
J17
J19
J21
J22
J38
J39
J40
J41
J42
J44
J48
J67
J77
J78
J79
J1701
* = Pin 1 located on the board by finding the arrow that points to it on the PCB silkscreen.
** = Pin 1 located by viewing the front of the board for the square solder pad.
Document 91125PCIX-UM100-R

Table 1: Connector Descriptions

Description
Fan power connector (pin 1 = GND, pin 2 = 12VDC)
10/100/1000 Mbps Ethernet Port E0
10/100/1000 Mbps Ethernet Port E1
ROM Emulator connector (see
DEBUG_L trigger for scope (pin1 * = GND, pin2 = DEBUG_L)
EJTAG connector
External Cold Reset switch connector (pin 1 = GND, pin 2 = COLDRES_L)
1.2V core supply sense (pin1 ** = GND, pin2 = 1.2V)
ATX power connector
ATX case power switch connector
2.5V supply sense (pin1 ** = GND, pin2 = 2.5V)
1.25V supply sense (pin1 ** = GND, pin2 = 1.25V)
DDR SDRAM DIMM slot 1 (CS 2/3)
DDR SDRAM DIMM slot 0 (CS 0/1)
IO_CLK100 connector
3.3V, 33/66 MHz, 32b PCI slot, BCM1125 PCI device 5
Dual stack RS-232 serial port connectors (top = serial port S0, bottom = serial port S1)
ROM emulator write line (pin 1 * = IO_WR_L, pin 2 = no connect)
3.3V, 66/100/133 MHz, 64b PCI-X slot A, PLX HT7520 device 0
3.3V, 66/100/133 MHz, 64b PCI-X slot B, PLX HT7520 device 1
3.3/5V Compact Flash slot
Dual stack USB ports
B roadc om C or por ati on
Table 2 on page 10)
BCM91125PCIX
Connectors Page 9