Safe Start Header; Bus Mode Select Header; Srom Initialization Enable Header; Table 3-16 Safe Start Env Header Pin Assignments, J20 - Motorola CPCI-6115 Installation And Use Manual

Safe Start Header

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:

Table 3-16 Safe Start ENV Header Pin Assignments, J20

Pin
1
2
3
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:

Table 3-17 Bus Mode Select Header Pin Assignments, J6

Pin
1
2
3
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 3-18 SROM Initialization Enable Header Pin Assignments, J25

Pin
1
2
3
CPCI-6115 CompactPCI Single Board Computer Installation and Use (6806800A68D)
Signal
GND
SAFE_START
+3.3 V
Signal
GND
BMODE_SEL
+3.3 V
Signal
+3.3 V
SROM_INIT
GND
Controls, LEDs, and Connectors
Function
1-2 for ENV parameters
2-3 for SAFE start
Function
1-2 for 60x mode
2-3 for MPX mode
Function
1-2 for I2C Init
2-3 for No I2C Init
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