參數資料
型號： M30100F3TFP
元件分類： 微控制器/微處理器
英文描述： 16-BIT, FLASH, 16 MHz, MICROCONTROLLER, PQFP32
封裝： PLASTIC, LQFP-32
文件頁數： 158/163頁
文件大小： 2767K
代理商： M30100F3TFP
Under
development
Tentative Specifications REV.E1
Specifications in this manual are tentative and subject to change.
Mitsubishi microcomputers
M30100/M30102 Group
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
Timer C
94
Figure 1.14.31. Block diagram of Timer C
Timer C
Timer C is a 16-bit free-running timer. Figure 1.14.31 shows the block diagram of Timer C. The Timer C
uses an edge input to TCIN pin or the output of 512 fRING divisions as trigger to latch the timer count value
and generates an interrupt request. The TCIN input has a digital filter and this prevents an error caused by
noise or so on from occurring. Table 1.14.14 shows Timer C specifications. Figure 1.14.32 shows Timer
C-related registers. Figure 1.14.33 shows an operation example of Timer C and timer measurement
register.
Item
Specification
Count source
f1, f8, f32
Count operation
Up count
Transfer counter value to time measurement register at active edge of
measurement pulse
Do not reset counter value even if active edge is detected
Count start condition
Time measurement control bit is set (=1)
Counter stop condition
Time measurement control bit is reset (=0)
Interrupt request generation timing When active edge of measurement pulse is input [TCIN interrupt]
When the time underflows [Timer C interrupt]
TCIN pin function
Measurement pulse input
Count value reset timing
When time measurement control bit is reset (=0)
Read from timer (Note)
Count value can be read out by reading Timer C. (Note)
Count value at measurement pulse active edge input can be read out by reading time
measurement register.
Write to timer
Cannot write to Timer C and time measurement register
Select function
Measurement pulse active edge: selectable (rising edge/falling edge/both edges)
Measurement pulse: selectable (input from TCIN pin/512 divisions of fRING)
Digital filter sampling frequency: selectable (f1/f8/f32)
Note: The Timer C and the timer measurement register must be read in word-size.
Time measurement register (16)
Upper 8 bits
Lower 8 bits
Timer C counter (16)
f1
f8
f32
Edge detection
TCIN
1/256
1/2
Ring oscillation
TCIN interrupt
Timer C overflow interrupt
Time measurement
input source
switching bit
"0"
"1"
Timer C clock
select bit
Reload signal
Digital
filter
f1
f8
f32
Digital filter clock
select bit
Address 009D16
Address 009C16
Address 009016
Address 009116
Data bus
Upper 8 bits
Lower 8 bits
Table 1.14.14. Specifications of Timer C
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