参数资料
型号: M37274MA-XXXSP
元件分类: 微控制器/微处理器
英文描述: 8-BIT, MROM, MICROCONTROLLER, PDIP52
封装: 0.600 INCH, 1.778 MM PITCH, SHRINK, PLASTIC, DIP-52
文件页数: 29/131页
文件大小: 2049K
代理商: M37274MA-XXXSP
124
MITSUBISHI MICROCOMPUTERS
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER
and ON-SCREEN DISPLAY CONTROLLER
M37274MA-XXXSP
PRELIMINARY
Notice:
This
is not
a final
specification.
Some
paramentic
limits
are
subject
to change.
Clock Source Control Register
Address 021616
b7 b6 b5 b4 b3 b2 b1 b0
Clock source control register (CS) [Address 0216 16]
B
Name
Functions
After reset RW
Clock Source Control Register
0
CC mode clock
selection bit (CS0)
0R W
1, 2 OSD mode clock selection
bits (CS1, CS2)
0: Data slicer clock
1: OSC1 clock
0R W
3
EXOSD mode clock
selection bit (CS3)
0: Data slicer clock
1: OSC1 clock
0R W
4, 5
0
W
6
Pre-divide ratio of layer 2
selection bit (CS6)
0: ! 1
1: ! 2
0
RW
7
0
0: Data slicer clock
0
1: OSC1 clock
1
0: Main clock (See note 1)
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 P63, P64
(See note 2)
1
0: LC oscillating mode
1
1: Ceramic quartz-crystal
oscillating mode
b5
b4
Notes 1: When setting “102,” 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 P64, set bit 7 at address 00C716
to “1.”
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.
RW
0
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