Fujitsu F2 MC-16L Operation Manual page 15

Subclock
Supply
Availability
1
source*
Clock
Available
area
Not
available
*1 : Oscillation with a crystal unit mounted on the user system is not supported.
*2 : The correspondence between the number of the evaluation MCU pins and the subclock signal (X0A, X1A) varies
depending on the evaluation MCU used. Note that the correct pins must be used for the setting.
Contact the sales or support representative for number of the evaluation MCU pin that provides the subclock signal.
Note : To supply the main clock from the user system, add an oscillator to the user system and have the main
clock supplied after buffering using COMS or another type of buffer.
S2 SUB XTAL
X1A
X0A
A B C
(a)
Figure 12 Examples of subclock setting jumper settings
Table 4 Settings of the main clock switch
Main clock supply source
Clock area
User system
Table 5 Settings of the subclock switch
Corresponding pin on
2
the evaluation MCU*
X1A: Pin 51
X0A: Pin 176
X1A: Pin 176
X0A: Pin 51
-
S2 SUB XTAL
A B
(b)
1
OFF
ON
Setting of
FC SEL
(SW3)
3 4
X1A: B-X1A: C
OFF OFF short-circuited
Figure 12 (a)
X1A: B-X0A: B
OFF OFF short-circuited
Figure 12 (b)
X1A: A-X1A: B
ON ON short-circuited
Figure 12 (c)
S2
X1A
X0A
C A
Setting of FC SEL (SW3)
Setting of SUB XTAL (S2)
X0A: B-X0A: C
short-circuited
Figure 12 (a)
X1A: C-X0A: C
short-circuited
Figure 12 (b)
X0A: A-X0A: B
short-circuited
Figure 12 (c)
SUB XTAL
X1A
X0A
B C
(c)
2
OFF
ON
11