Motorola CPCI-6115 - Manual (Page 67)

Safe Start Header Controls, LEDs, and Connectors
CPCI-6115 CompactPCI Single Board Computer Installation and Use (6806800A68D) 65
3.5.14 Safe Start Header
A 3-pin 2 mm header is located on the board to select programmed or safe start ENV settings.
No jumper or a jumper between pins 1 and 2 indicates that the programmed (e.g., VPD, SPD)
settings should be used during boot. A jumper between pins 2 and 3 indicates that the safe start
settings should be used. The pin assignments for this header are as follows:
3.5.15 Bus Mode Select Header
A 3-pin 2 mm header is located on the board to select the processor bus operating mode. No
jumper or a jumper from pins 1 to 2 selects the 60x bus mode while a jumper between pins 2
and 3 selects the MPX bus mode. The pin assignments for this header are as follows:
3.5.16 SROM Initialization Enable Header
A 3-pin 2 mm header is located on the board to enable/disable the MV64360 SROM
initialization. A jumper from pins 1 to 2 enables the MV64360 device initialization via I2C SROM
while no jumper or a jumper between pins 2 and 3 will disable this initialization sequence. The
pin assignments for this header are as follows:
Table 3-16 Safe Start ENV Header Pin Assignments, J20
Pin Signal Function
1 GND 1-2 for ENV parameters
2 SAFE_START
3 +3.3 V 2-3 for SAFE start
Table 3-17 Bus Mode Select Header Pin Assignments, J6
Pin Signal Function
1 GND 1-2 for 60x mode
2 BMODE_SEL
3 +3.3 V 2-3 for MPX mode
Table 3-18 SROM Initialization Enable Header Pin Assignments, J25
Pin Signal Function
1 +3.3 V 1-2 for I2C Init
2 SROM_INIT
3 GND 2-3 for No I2C Init