Table 4: Jumper, Fuse, And Battery Descriptions; Table 5: Static Configuration Jumper (J76) Settings - Broadcom BCM91125PCIX User Manual

BCM91125PCIX
Board ID
J20
J76
F5
F6
F7
BT1
* = default
Note: The table layout reflects the physical location of the pins on this header. The top of the
header (where pin 1 exists) is where the "J76" designator is on the board silkscreen.
Note: Jumpers should only be used to connect the odd pin with the even pin directly across from
it (for example, where pin 1 is connected to pin 2). Other connections could permanently damage
the board.
Odd Pin Name
3.3 V PWR
3.3 V PWR
3.3 V PWR
3.3 V PWR
GND
RICE_IO_WR_L
3.3 V PWR
3.3 V PWR
3.3 V PWR
* = Static configuration is also controlled by either switch SW11 or SW12. These signals are electrically OR'ed together, so if either is "On"
in the case of the switches (SW11 or SW12), or "Closed" in the case of the jumper (J76), the "On"/"Closed" value is selected. Otherwise, both
must be "Off" or "Open" to select the "Off"/"Closed" value.
Page 14 Jumpers, Fuses, and Battery

Table 4: Jumper, Fuse, and Battery Descriptions

Function
32b PCI clock select (open * = run at slowest PCI agent; closed = force 33 MHz)
Static configuration jumpers (See
USB slot0 5V, 1A current limit fuse
USB slot1 5V, 1A current limit fuse
EJTAG 3.3V, 1A current limit fuse
RTC battery

Table 5: Static Configuration Jumper (J76) Settings

Odd Pin Even Pin
Even Pin Name
# #
1 2 * CPU clock
divider pll_div[0]
3 4 * CPU clock
divider pll_div[1]
5 6 * CPU clock
divider pll_div[2]
7 8 * CPU clock
divider pll_div[4]
9 10 * CPU clock
divider pll_div[3]
11 12 reserved
13 14 * BCM1125H
software config[0]
15 16 * BCM1125H
software config[1]
17 18 * BCM1125H
software config[2]
B roadc om C or por ati on
Table 5 for more details)
Open Function
Open = Off (for
switches SW11/
SW12)
See Table 6 for configuration details
N/A
Open = Off (for
switches SW11/
SW12)
See Table 6 for configuration details.
User Manual
07/02/04
Closed Function
Closed = On
N/A
Closed = On
Document 91125PCIX-UM100-R