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M306V5ME-XXXSP Datasheet(PDF) 28 Page - Mitsubishi Electric Semiconductor

Part No. M306V5ME-XXXSP
Description  SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER and ON-SCREEN DISPLAY CONTROLLER
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Maker  MITSUBISHI [Mitsubishi Electric Semiconductor]
Homepage  http://www.mitsubishichips.com
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M306V5ME-XXXSP Datasheet(HTML) 28 Page - Mitsubishi Electric Semiconductor

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M306V5ME-XXXSP
M306V5EESP
MITSUBISHI MICROCOMPUTERS
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER
and ON-SCREEN DISPLAY CONTROLLER
28
Rev. 1.0
2.5.2 OSD Oscillation Circuit
The OSD clock oscillation circuit can obtain simply a clock for OSD by connecting an LC oscillator or a
ceramic resonator (or a quartz-crystal oscillator) across the pins OSC1 and OSC2. Which of LC oscillator
or a ceramic resonator (or a quartz-crystal oscillator) is selected by setting bits 1 and 2 of the clock control
register (address 020516).
Figure 2.5.2 OSD clock connection example
2.5.3 Clock Control
Figure 2.5.3 shows the block diagram of the main clock generating circuit.
Sub clock
CM0i : Bit i at address 000616
CM1i : Bit i at address 000716
WDCi : Bit i at address 000F16
CM10 “1”
Write signal
Q
S
R
WAIT instruction
XOUT
Main clock
CM02
f1
Q
S
R
Interrupt request
level judgment
output
RESET
Software reset
fAD
Divider
a
d
1/2
1/2
1/2
1/2
CM06=0
CM17,CM16=00
CM06=0
CM17,CM16=01
CM06=0
CM17,CM16=10
CM06=1
CM06=0
CM17,CM16=11
d
a
Details of divider
XIN
f8
f32
c
b
b
1/2
c
f32SIO2
f8SIO2
f1SIO2
BCLK
Figure 2.5.3 Clock generating circuit
OSC2
OSC1
L
C1
C2
Microcomputer


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