參數(shù)資料
型號： M37510E4156FP
廠商： Mitsubishi Electric Corporation
英文描述： SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
中文描述： 單芯片8位CMOS微機
文件頁數(shù)： 33/43頁
文件大?。?/td> 614K
代理商： M37510E4156FP
33
7510 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
Fig. 32 State transitions of system clock
Low power consumption mode (
φ
=16kHz)
CM
7
= 1 (32kHz selected)
CM
6
= 0 (High-speed)
CM
5
= 1 (X
IN
stopped)
CM
4
= 1 (32kHz oscillating)
CM
6
“1” “0”
CM
4
“0” “1”
CM
6
“1” “0”
Switch the mode by the allows shown between the mode blocks. (Do not switch between the mode directly without an allow.)
The main clock must be oscillated (CM
5
: 1
→
0) before the switching from the low-speed mode to middle/high-speed mode (CM
7
: 1
→
0).
The all modes can be switched to the stop mode or the wait mode and return to the source mode when the stop mode or the wait mode
is ended.
Timer and LCD operate in the wait mode.
When the stop mode is ended, a delay of approximately 2ms is automatically generated by timer 1 and timer 2 in middle/high-speed mode.
When the stop mode is ended, a delay of approximately 0.25s is automatically generated by timer 1 and timer 2 in low-speed mode.
The example assumes that 8.0MHz is being applied to the X
IN
pin and 32kHz to the X
CIN
pin
φ
indicates the internal clock.
b7
CPU mode register
(CPUM : address 003B
16
)
CM
4
: Port X
C
selection bit
0 : I/O port
1 : X
CIN
, X
COUT
CM
5
: Main clock (X
IN
-X
OUT
) stop bit
0 : Operating
1 : Stopped
CM
6
: Main clock division ratio selection bit
0 : X
IN
/2 (high-speed mode)
1 : X
IN
/8 (middle-speed mode)
CM
7
: Internal system clock selection bit
0 : X
IN
-X
OUT
selected
(middle/high-speed mode)
1 : X
CIN
-X
COUT
selected
(low-speed mode)
b0
Notes 1 :
2 :
3 :
4 :
5 :
6 :
Reset
CM
4
“1” “0”
C
4
“
CM
6
“1” “0”
C
4
“
C
7
“
CM
6
“1” “0”
C
7
“
CM
6
“1” “0”
CM
5
“0” “1”
CM
6
“1” “0”
CM
5
“1” “0”
C
5
“
CM
6
“1” “0”
C
5
“
High-speed mode (
φ
= 4.0MHz)
CM
7
= 0 (8.0MHz selected)
CM
6
= 0 (High-speed)
CM
5
= 0 (X
IN
oscillating)
CM
4
= 1 (32kHz oscillating)
CM
6
“1” “0”
Middle-speed mode (
φ
=1MHz)
CM
7
= 0 (8.0MHz selected)
CM
6
= 1 (Middle-speed)
CM
5
= 0 (X
IN
oscillating)
CM
4
= 1 (32kHz oscillating)
Middle-speed mode (
φ
=1MHz)
CM
7
= 0 (8.0MHz selected)
CM
6
= 1 (Middle-speed)
CM
5
= 0 (X
IN
oscillating)
CM
4
= 0 (32kHz stopped)
High-speed mode (
φ
= 4.0MHz)
CM
7
= 0 (8.0MHz selected)
CM
6
= 0 (High-speed)
CM
5
= 0 (X
IN
oscillating)
CM
4
= 0 (32kHz stopped)
Low-speed mode (
φ
=16kHz)
CM
7
= 1 (32kHz selected)
CM
6
= 1 (Middle-speed)
CM
5
= 0 (X
IN
oscillating)
CM
4
= 1 (32kHz oscillating)
Low-speed mode (
φ
= 16kHz)
CM
7
= 1 (32kHz selected)
CM
6
= 0 (High-speed)
CM
5
= 0 (X
IN
oscillating)
CM
4
= 1 (32kHz oscillating)
Low power consumption mode (
φ
=16kHz)
CM
7
= 1 (32kHz selected)
CM
6
= 1 (Middle-speed)
CM
5
= 1 (X
IN
stopped)
CM
4
= 1 (32kHz oscillating)
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