參數(shù)資料
型號： M37207MF-157SP
廠商： Mitsubishi Electric Corporation
英文描述： SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER and ON-SCREEN DISPLAY CONTROLLER
中文描述： 單芯片8位CMOS微機電壓合成器和屏幕顯示控制器
文件頁數(shù)： 11/121頁
文件大?。?/td> 1907K
代理商： M37207MF-157SP
MITSUBISHI MICROCOMPUTERS
M37207MF-XXXSP/FP, M37207M8-XXXSP
M37207EFSP/FP
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER
and ON-SCREEN DISPLAY CONTROLLER
11
FUNCTIONAL DESCRIPTION
Central Processing Unit (CPU)
This microcomputer uses the standard 740 Family instruction set.
Refer to the table of 740 Family addressing modes and machine
instructions or the SERIES 740 <Software> User’s Manual for de-
tails on the instruction set.
Machine-resident 740 Family instructions are as follows:
The FST, SLW instruction cannot be used.
The MUL, DIV, WIT and STP instructions can be used.
CPU Mode Register
The CPU mode register contains the stack page selection bit and
internal system clock selection bit. The CPU mode register is allo-
cated at address 00FB
16
.
Fig. 3. CPU Mode Register
b7b6 b5b4b3 b2b1b0
B
After reset
R W
0
CPU Mode Register
0, 1
2
3
1
Name
Functions
Processor mode bits
(CM0, CM1)
0 0: Single-chip mode
0 1:
1 0: Not available
1 1:
Fix these bits to “1.”
1
Stack page selection
bit (CM2)
(See note 1)
1
b1 b0
0: 0 page
1: 1 page
0
0
CPU mode register (CPUM) (CM) [Address 00FB
16
]
R W
R W
R W
5
1
6
0
Main Clock (X
IN
–X
OUT
)
stop bit
(CM6)
R W
R W
X
COUT
drivability
selection bit (CM5)
0: LOW drive
1: HIGH drive
0: Oscillating
1: Stopped
7
0
Internal system clock
selection bit
(CM7)
R W
0: X
IN
–X
OUT
selected
(high-speed mode)
1: X
CIN
–X
COUT
selected
(high-speed mode)
Notes 1:
This bit is set to “1” after the reset release.
2:
The internal system clock
φ
stops at HIGH.
4
1
Internal system clock
output selection bit
(CM4)
(See note 2)
0: Output is stopped
1: Internal system
clock
φ
output
R W
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