參數資料
型號： M37274MA-052SP
廠商： Mitsubishi Electric Corporation
英文描述： PHOTO SM DETECTOR
中文描述： 單芯片8位CMOS微機隱蔽字幕解碼器和屏幕顯示控制器
文件頁數： 140/147頁
文件大小： 2042K
代理商： M37274MA-052SP
140
MITSUBISHI MICROCOMPUTERS
M37274EFSP
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER
and ON-SCREEN DISPLAY CONTROLLER
PRELIMINARY
Notice: This is not a final specification.
Some paramentic limits are subject to change.
Clock Source Control Register
Address 0216
16
b7 b6 b5 b4 b3 b2 b1 b0
Clock source control register (CS) [Address 0216
16
]
B
Name
Functions
After reset
R W
Clock Source Control Register
0
CC mode clock
selection bit (CS0)
0
R W
1, 2 OSD mode clock selection
bits (CS1, CS2)
0: Data slicer clock
1: OSC1 clock
0
R W
3
EXOSD mode clock
selection bit (CS3)
0: Data slicer clock
1: OSC1 clock
0
R W
4, 5
0
W
6
Pre-divide ratio of layer 2
selection bit (CS6)
0:
1
1:
2
0
R W
0
R W
7
0
0
1
1
0: Data slicer clock
1: OSC1 clock
0: Main clock (See note 1)
1: Do not set
b2
b1
Test bit
(See note 3)
R
OSD oscillating mode
selection bits (CS4, CS5)
0 0: 32 kHz oscillating mode
0 1: Input ports P6
3
, P6
4
(See note 2)
1 0: LC oscillating mode
1 1: Ceramic quartz-crystal
oscillating mode
b5
b4
Notes 1:
When setting “10
2
,” main clock is set as a clock in the CC mode and
EXOSD mode regardless of bits 0, 3.
2:
When selecting input ports P6
3
and P6
4
, set bit 7 at address 00C7
16
to “0.”
3:
Be sure to set bit 7 to “0” for program of the mask and the EPROM
versions. For the emulator MCU version (M37274ERSS), be sure to set
bit 7 to “1” when using the data slicer clock for software debugging.
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