m37905 Renesas Electronics Corporation., m37905 Datasheet - Page 119

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

TIMER A
7.3 Timer mode
Fig. 7.3.5 Example of operation with pulse output function selected
7-16
(2) Pulse output function
Pulse output from
Timer Ai interrupt
Count start bit
The pulse output function is selected by setting the pulse output function select bit (bit 2 at addresses
56
pulse output pin regardless of the corresponding bits of the port P6, P2, and P4 direction registers.
The TAi
When the count start bit (addresses 40
Figure 7.3.5 shows an example of operation with the pulse output function selected.
TAi
request bit
16
OUT
to 5A
FFFF
0000
n : Reload register’s contents
pin
OUT
n
16
16
16
pin outputs a pulse of which polarity is inverted each time a counter underflow occurs.
, D6
Starts counting.
16
Set to “1” by software.
to DA
16
) to “1.” When this function is selected, the TAi
Cleared to “0” when interrupt request is accepted or cleared by software.
7905 Group User’s Manual Rev.1.0
16
, 41
16
) is “0” (count stopped), the TAi
Cleared to “0” by software.
Starts counting.
OUT
pin is forcibly set for the
OUT
Set to “1” by software.
pin outputs “L” level.
Restarts
counting.
Time