5-42
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Pin Assignments
5
SROM Initialization Enable Header (J17)
A 3-pin 2 mm planar header enables/disables the GT-64260B SROM
initialization. No jumper or a jumper across pins 1-2 enables the
GT-64260B device initialization via I2C SROM while a jumper across
pins 2-3 disables this initialization sequence. The pin assignments for this
header are as follows:
Bus Mode Select Header (J19)
A 3-pin 2 mm planar header selects the processor bus operating mode. No
jumper or a jumper across pins 1-2 selects the 60x bus mode while a
jumper across pins 2-3 selects the MPX bus mode. The pin assignments for
this header are as follows:
Table 5-28. SROM Initialization Enable Header (J17) Pin
Assignments
Pin
Signal
1
+3.3V
2
SROM_INIT
3
GND
Table 5-29. Bus Mode Header (J19) Pin Assignments
Pin
Signal
1
GND
2
BUS_MODE
3
+3.3V