Fujitsu F2MC-8FX Series Panduan Pengoperasian - Halaman 15

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Halaman Cetak
Fujitsu F2MC-8FX Series Panduan Pengoperasian
Voltage
selector
switch
C-pin
selector
switch
Header board
I/F
connector
Product
selector
switch
■ Clock settings
Figure 13 shows the clock-related circuit diagram.
AVcc
AVR
AVss
1
AVcc3
1
0
AVR3
0
Vcc
1
MB95FV100D-102
C
0
(Evaluation MCU)
0
PG0
1
0
Clock selector
0
switch
1
SEL4
1
1
SEL0
2
SEL1
3
SEL2
4
SEL3
Figure 12 MCU board functional block diagram
X0
T4
X1
U2
(M1)
X0A
R3
X1A
V1
Crystal oscillator
(R1)
mounting socket
(sub clock)
CSVEN
APBEN
LVDREXT
LVDEN
LVD
selector
switch
LVDEN2
X0,X1,
X0A,X1A
Vcc,GND,BRSTX,
BSIN,BSOUT,
BDBMX,BEXCK
LVDIN
LVR0
LVR1
LVR2
LVR3
LVR4
Other pins
Crystal oscillator mounting
socket (main clock)
GND
C
B
A
Sub clock selector
jumper plug
GND
Figure 13 Clock selector circuit
Clock supervisor
0
selector switch
1
APB8 bus output
selector switch
0
1
0
1
2
Clock
selector
circuit
Header board
BGM
connector
adapter
connector
1
2
3
4
5
LVD2 detection voltage
setting jumper plug
Clock input
selector switch
1
X0
2
X1
3
X0A
4
X1A
1
2
I/F
11