參數(shù)資料
型號: M38B52E5XXXFS
廠商: Renesas Technology Corp.
英文描述: SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
中文描述: 單芯片8位CMOS微機(jī)
文件頁數(shù): 55/70頁
文件大小: 864K
代理商: M38B52E5XXXFS
MITSUBISHI MICROCOMPUTERS
38B5 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
58
PRELIMINAR
Y
Notice:
This
is not
a final
specification.
Some
parametric
limits
are
subject
to change.
Fig. 70 Clock Generating Circuit Block Diagram
WIT instruction
STP instruction
Timing
φ (internal clock)
S
R
Q
STP instruction
S
R
Q
Main clock stop bit
(Note 3)
S
R
Q
1/4
XIN
XOUT
XCOUT
XCIN
Interrupt request
Reset
Interrupt disable flag l
1/2
Port XC
switch bit (Note 3)
“1”
“0”
“1”
Timer 1 count source
selection bit (Note 2)
Low-speed mode
High-speed or
middle-speed
mode
Middle-speed mode
High-speed or
low-speed mode
Internal system clock
selection bit (Notes 1, 3)
“1”
“0”
Timer 1
Timer 2
Timer 2 count source
selection bit (Note 2)
“0”
Main clock division ratio
selection bits (Note 3)
“1”
“0”
“1”
“0”
Notes 1: When low-speed mode is selected, set the port Xc switch bit (b4) to “1.”
2: Refer to the structure of the timer 12 mode register.
3: Refer to the structure of the CPU mode register.
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