M30280F6HP RENESAS [Renesas Technology Corp], M30280F6HP Datasheet - Page 129

• Manufacturer Part Number: M30280F6HP
• Description: 16-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY / M16C/Tiny SERIES
• Manufacturer: RENESAS [Renesas Technology Corp]

M
R
R
e
E
1
. v
Table 12.4 Specifications in One-shot Timer Mode
J
6
0
12.1.3 One-shot Timer Mode
Count source
Count operation
Divide ratio
Count start condition
Count stop condition
Interrupt request generation timing
TAi
TAi
Read from timer
Write to timer
Select function
C
2
9
2 /
In one-shot timer mode, the timer is activated only once by one trigger. (See Table 12.4) When the
trigger occurs, the timer starts up and continues operating for a given period. Figure 12.11 shows the
TAiMR register in one-shot timer mode.
0 .
B
IN
OUT
0
8
0
0
G
4
pin function
J
7
a
o r
pin function
0 -
. n
Item
u
2
3
p
0
, 1
0
(
M
2
0
1
0
6
7
C
2 /
page 109
, 8
M
1
f
• Decrement
• When the counter reaches 0000
• If a trigger occurs when counting, the timer reloads a new count and restarts counting
1/n
However, the counter does not work if the divide-by-n value is set to 0000
• The TAiOS bit in the ONSF register is set to “1” (timer starts)
• When the counter is reloaded after reaching “0000
• TAiS bit is set to “0” (stop counting)
When the counter reaches “0000
I/O port or trigger input
I/O port or pulse output
An indeterminate value is read by reading TAi register
6
1
TAiS bit in the TABSR register is set to “1” (start counting) and one of the
following triggers occurs.
• External trigger input from the TAi
• Timer B2 overflow or underflow,
• When not counting and until the 1st count source is input after counting start
• When counting (after 1st count source input)
• Pulse output function
C
, f
timer Aj (j=i-1, except j=4 if i=0) overflow or underflow,
timer Ak (k=i+1, except k=0 if i=4) overflow or underflow
Value written to TAi register is written to both reload register and counter
Value written to TAi register is written to only reload register
(Transferred to counter when reloaded next)
The timer outputs a low when not counting and a high when counting.
2 /
f o
2
, f
8
3
) B
8
8
n : set value of TAi register
, f
5
32
, f
C32
Specification
16
16
, it stops counting after reloading a new value
”
IN
0000
pin
16
to FFFF
16
16
”
12. Timer
16
.