參數(shù)資料
型號(hào)： M30100
廠商： Renesas Technology Corp.
英文描述： SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
中文描述： 單片16位CMOS微機(jī)
文件頁數(shù)： 71/164頁
文件大小： 3302K
代理商： M30100
deveopment
Tentative Specifications REV.E1
Timer X
Specifications in this manual are tentative and subject to change.
Mitsubishi microcomputers
M30100/M30102 Group
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
70
Figure 1.14.12. Operation example in pulse period measurement mode
Timer X=0F
16
f
PX
0F
16
0E
16
0F
16
0E
16
0D
16
0C
16
0B
16
0A
16
0F
16
0E
16
0D
16
01
16
00
16
0F
16
0E
16
0F
16
0E
16
0D
16
0B
16
09
16
Timer X
reloads
0D
16
01
16
0F
16
0E
16
Read by software.
(Note 3)
Effectaul edge
reception flag
(Note 2)
Cleared to "0" by software.
Timer X
underflow flag
Note 1: If timer X is read out in pulse period measurement mode, the contents of the read purpose buffer can be read.
Note 2: After an active edge of measurement pulse is input, effectaul edge reception flag(TXEDG) is set to "1" when
the prescaler X underflows for the second time.
Note 3: The timer X should be read out before the next active edge is input after TXEDG is set to "1". If the timer X is
not read before the next active edge is input, the value in the read purpose buffer remains unchanged and
therefore is not updated on an active edge.
Note 4: When set to "0" by software, use a MOV instruction to write "0" to the bit 6 (TXEDG) in the timer X mode
register (008B
16
). At the same time, write "1" to the bit 7 (TXUND).
Note 5: When set to "0" by software, use a MOV instruction to write "0" to the bit 7 (TXUND) in the timer X more
register (008B
16
). At the same time, write "1" to the bit 6 (TXEDG).
Note 6: If the timer X underflow flag (TXUND) and TXEDG are both set to "1". In this case, the validity of TXUND
sholud be judged by the contents of the read purpose buffer.
Conditions: A period from one rising edge to the next rising edge of measurement pulse is measured. (R0EDG=0)
Set to "1" by software
Count start
Count start flag
“1”
“0”
“1”
“0”
Measurement pulse
(CNTR0 pin input)
Timer X
contents (hex)
Contents of read
purpose buffer(
Note 1)
Timer X
reloads
Timer X
reloads
Read by software.
(Note 3)
(Note 2)
(Note 4)
(Note 5)
(Note 6)
Cleared to "0" by software.
“1”
“0”
“1”
“0”
“1”
“0”
“1”
“0”
Cleared to “0” when interrupt request is accepted, or cleared by software
Cleared to “0” when interrupt request is accepted, or cleared by software
CNTR0 interrupt
request bit
Timer X interrupt
request bit
0A
16
00
16
Hold
Hold
09
16
0D
16
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