參數(shù)資料
型號: M30240S9-XXXFP
廠商: Mitsubishi Electric Corporation
英文描述: 16 Characters x 2 Lines, 5x7 Dot Matrix Character and Cursor
中文描述: 單片16位CMOS微機
文件頁數(shù): 75/142頁
文件大小: 1637K
代理商: M30240S9-XXXFP
1-75
Mitsubishi microcomputers
M30240 Group
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
Preliminary Specifications REV. E
Specifications in this manual are tentative and subject to change
Timer A
Table 1.19:
Timer specification in even counter mode (when processing two-phase pulse signal with
timers A2, A3, and A4)
Item
Specification
Count Source
Two-phase pulse signals input to TAiIN or TAiOUT pin
Count operation
Up count or down count can be selected by two-phase pulse signal
When the timer overflows or underflows, the reload register content is loaded and the timer
starts over again (Note 1)
Divide ratio
1/ (FFFF
16
- n + 1) for up count
1/ (n+1) for down count n: Set value
Count start flag is set (=1)
Count start condition
Count stop condition
Interrupt request
generation timing
Count start flag is reset (=0)
Timer overflow or underflows
TAi
IN
pin function
TAi
OUT
pin function
Read from timer
Two-phase pulse input
Two-phase pulse input
Count value can be read out by reading timer A2, A3, or A4 register
Writer to timer
When counting is stopped and a value is written to timer A2, A3, or A4 register, it is written
to both the reload register and counter
When counting is in progress and a value is written to timer A2, A3, or A4 register, it is
written to only reload register to be transferred to counter at the next reload time.
Select function
Normal processing operation
The timer counts up rising edges or counts down falling edges on the TAi
IN
pin when input
signal on the TAi
OUT
pin is “H”
Multiply-by-4 processing operation
If the phase relationship is such that the
TAi
IN
pin goes “H” when the input signal on the
TAi
OUT
pin is “H”, the timer counts up rising and falling edges on the
TAi
OUT a
nd T
Ai
IN
pins.
If the phase relationship is such that the T
Ai
IN
pin goes “L” when the input signal on the
TAi
OUT
pin is “H”, the timer counts down rising and falling edges on the
TAi
OUT
and T
Ai
IN
pins.
Note 1
This does not apply when the free-run function is selected.
TAi
OUT
TAi
IN
(i=2,3)
Up
count
Up
count
Up
count
Down
count
Down
count
Down
count
Count up all edges
Count down all edges
Count down all edges
Count up all edges
TAi
OUT
T
Ai
IN
(i=3,4)
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