BCM91125E
User Manual
04/27/05
B ro a d c o m C o r p o r a t i o n
Page 6
Connectors
Document
91125E-UM100-R
C
ONNECTORS
Figure 3 shows the location of each of the connectors on the board. These connectors are defined in Table 1.
Exact pin descr iption s for t he mor e complex con nector s ar e do cumented in “S upplement al
Information” on page 15.
Figure 3: Connector Locations
Table 1: Connector Descriptions
Board ID
Description
J2
Dual-sided 62-pin edge finger PCI connector.
J3
HyperTransport socket for motherboards (see Table 14 on page 15).
J8
Serial port 0 RS-232 connector.
J11
ROM emulator connector (see Table 16 on page 19).
J12
ROM emulator write line (pin1* = IO_WR_L, pin2 = no connect).
J14
DEBUG_L trigger for scope (pin1* = GND, pin2 = DEBUG_L).
J15
EJTAG connector.
J17
Mezzanine connector (see Table 15 on page 17).
J18
1.2V core supply sense (pin1* = GND, pin2 = 1.2V).
J19
Standard hard drive power supply connector.
J21
2.5V supply sense (pin1* = GND, pin2 = 2.5V).
J22
3.3V supply sense (pin1* = GND, pin2 = 3.3V).
J23A
10/100/1000 Mbps Ethernet Port E1.
J23B
10/100/1000 Mbps Ethernet Port E0.
* = Pin1 located is indicated by the * on this figure. It can also be identified by viewing the back of the board for the square solder pad.
