User manual

Table 6-10 below describes the function of the option links associated with Clock configuration.
Option Link Settings
Reference Function Fitted Alternative ( Removed ) Related
To
R1 Main clock Parallel resistor for oscillator ‘X1’
Not fitted
-
R2 Main clock
On board clock X1 connected to the MCU as
main clock
External clock source can be connected to
the MCU
R3, R5,
R6, R7,
R8
R3 Main clock
On board clock X1 connected to the MCU as
main clock
External clock source can be connected to
the MCU
R2, R5,
R6, R7,
R8
R4 Main clock Parallel resistor for oscillator ‘X2’
Not fitted
-
R5 Main clock On board clock X2 can be connected to the
MCU as main clock
X2 is disconnected from MCU main
clock input pins
R2, R3,
R6, R7,
R8
R6 Main clock On board clock X2 can be connected to the
MCU as main clock
X2 is disconnected from MCU main
clock input pins
R2, R3,
R5, R7,
R8
R7 Main clock Routes MCU clock input pin XIN to J1 header (at
J1-12)
MCU pin XIN is disconnected from J1
header
R2, R3,
R5, R6,
R8
R8 Main clock Routes MCU clock output pin XOUT to J1 (at
J1-10) and JA2 (at JA2-2) headers
(External clock source is used for XOUT)
MCU pin XOUT is disconnected from
J1 and JA2 headers
R2, R3,
R5, R6,
R7
R9 Sub clock Parallel resistor for on-board sub clock X3
Not fitted
-
R10 Sub clock
On board clock X3 connected to the MCU as
sub clock
X3 is disconnected for XCIN R11, R12,
R13
R11 Sub clock
On board clock X3 connected to the MCU as
sub clock
X3 is disconnected for XCOUT R10, R12,
R13
R12 Sub clock Routes MCU clock input pin XCIN to J1 header
(at J1-7)
MCU pin XCIN is disconnected from J1
header
R10, R11,
R13
R13 Sub clock Routes MCU clock input pin XCOUT to J1
header (at J1-8)
MCU pin XCOUT is disconnected from
J1 header
R10, R11,
R12
Table 6-10: Clock configuration links
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