m37905 Renesas Electronics Corporation., m37905 Datasheet - Page 134

• Manufacturer Part Number: m37905
• Description: Mitsubishi 16-bit Single-chip Microcomputer 7700 Family / 7900 Series
• Manufacturer: Renesas Electronics Corporation.

Fig. 7.5.2 Initial setting example for registers related to one-shot pulse mode (1)
7.5.1 Setting for one-shot pulse mode
Figures 7.5.2 and 7.5.3 show an initial setting example for registers related to the one-shot pulse mode.
Note that when using interrupts, set up to enable the interrupts. For details, refer to “CHAPTER 6.
INTERRUPTS.”
Selecting one-shot pulse mode and each function
b7
(b15)
Setting “H” level width of one-shot pulse
b7
0
Setting interrupt priority level
b7
1
1 0
b0
(b8)
b0
Selection of one-shot pulse mode
Trigger select bits
Count source select bits
b4 b3
0 0 :
0 1 :
1 0 : Falling of TAi
1 1 : Rising of TAi
See Table 7.2.3.
Timer Ai mode register (i = 0 to 9)
(Addresses 56
b7
b0
Continued to Figure 7.5.3
Writing “1” to one-shot start bit: Internal trigger
7905 Group User’s Manual Rev.1.0
Interrupt priority level select bits
When using interrupts, set these bits to one of levels 1 to 7.
When disabling interrupts, set these bits to level 0.
(Addresses 75
Timer Ai interrupt control register (i = 0 to 9)
on the next page
Can be set to “0000
IN
IN
16
pin’s input signal: External trigger
pin’s input signal: External trigger
to 5A
Note.
16
16
, D6
to 79
“H” level width =
f
However, if n = “0000
TAi
request occurs.
b0
i
= Frequency of count source
16
16
OUT
” to “FFFF
16
Timer A0 register (Addresses 47
Timer A1 register (Addresses 49
Timer A2 register (Addresses 4B
Timer A3 register (Addresses 4D
Timer A4 register (Addresses 4F
Timer A5 register (Addresses C7
Timer A6 register (Addresses C9
Timer A7 register (Addresses CB
Timer A8 register (Addresses CD
Timer A9 register (Addresses CF
to DA
pin outputs “L” level. At this time, no timer Ai interrupt
, F5
16
16
to F9
)
16
” (n).
n
f
i
16
16
)
”, the counter does not operate and the
7.5 One-shot pulse mode
16
16
16
16
16
16
16
16
16
16
, 46
, 48
, 4E
, 4A
, 4C
, C6
, C8
, CE
, CA
, CC
16
16
TIMER A
16
16
16
16
16
16
16
16
)
)
)
)
)
)
)
)
)
)
7-31