M306V0ME-107FP MITSUBISHI [Mitsubishi Electric Semiconductor], M306V0ME-107FP Datasheet - Page 172
M306V0ME-107FP
Manufacturer Part Number
M306V0ME-107FP
Description
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER and ON-SCREEN DISPLAY CONTROLLER
Manufacturer
MITSUBISHI [Mitsubishi Electric Semiconductor]
Datasheet
1.M306V0ME-107FP.pdf
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Figure 2.16.13 Block diagram of dot size control circuit
Figure 2.16.14 Definition of dot sizes
2.16.3 Dot Size
The dot size can be selected by a block unit. The dot size in vertical direction is determined by dividing
H
following clock in the horizontal dot size control circuit : the clock gained by dividing the OSD clock source
(data slicer clock, OSC1, main clock) in the pre-divide circuit. The clock cycle divided in the pre-divide
circuit is defined as 1T
The dot size is specified by bits 3 to 6 of the block control register.
Refer to Figure 2.16.4 (the block control register i), refer to Figure 2.16.15 (the clock control register).
The block diagram of dot size control circuit is shown in Figure 2.16.13.
Notes 1 : The pre-divide ratio = 3 cannot be used in the CC mode.
SYNC
Data slicer
(See note)
2 : The pre-divide ratio of the layer 2 must be same as that of the layer 1 by the block control
3 : In the bi-scan mode, the dot size in the vertical direction is 2 times as compared with the normal
in the vertical dot size control circuit. The dot size in horizontal is determined by dividing the
Note: To use data slicer clock, set bit 0 of data slicer control register 1 to “0.”
OSC1
register i.
mode. Refer to “2.16.17 Scan Mode” about the scan mode.
clock
H
SYNC
C
.
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER
1
Synchronous
dot
circuit
1/2H
1T
C
Cycle 2
Cycle 3
Pre-divide circuit
1H
1T
C
In normal scan mode
2H
Clock cycle
= 1T
2T
C
C
and ON-SCREEN DISPLAY CONTROLLER
3H
MITSUBISHI MICROCOMPUTERS
3T
M306V0ME-XXXFP
C
OSD control circuit
Horizontal dot size
control circuit
Vertical dot size
control circuit
Scanning line of F1 (F2)
Scanning line of F2 (F1)
M306V0EEFP
Rev. 1.0
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