参数资料
型号: M38C81E1-XXXFP
厂商: Mitsubishi Electric Corporation
元件分类: Codec
英文描述: Low-Power Stereo CODEC with HP Amplifier 28-TSSOP 0 to 70
中文描述: 单芯片8位CMOS微机
文件页数: 10/51页
文件大小: 874K
代理商: M38C81E1-XXXFP
10
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
38C8 Group
PRELIMINARY
Notice: This is not a final specification.
change.
Some parametric limits are subject to
[CPU Mode Register (CPUM)] 003B
16
The CPU mode register contains the stack page selection bit and the
internal system clock selection bit.
The CPU mode register is allocated at address 003B
16
.
Fig. 7 Structure of CPU mode register
N
o
t
a
v
a
i
l
a
b
l
e
Processor mode bits
b1 b0
0 0 : Single-chip mode
0 1 :
1 0 :
1 1 :
Stack page selection bit
0 : 0 page
1 : 1 page
Not used (returns
1
when read)
(Do not write
0
to this bit)
Sub-clock (X
CIN
X
COUT
) stop bit
0 : Stopped
1 : Oscillating
Main clock (X
IN
X
OUT
) stop bit
0 : Oscillating
1 : Stopped
Main clock division ratio selection bit
0 : f(X
IN
)/2 (high-speed mode)
1 : f(X
IN
)/8 (middle-speed mode)
Internal system clock selection bit
0 : X
IN
X
OUT
selected (middle-/high-speed mode)
1 : X
CIN
X
COUT
selected (low-speed mode)
CPU mode register
(C
P
U
M
(
C
M
)
:
a
d
d
r
e
s
s
0
0
3
B
1
6
)
b
7
b0
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