m5m51016btp Renesas Electronics Corporation., m5m51016btp Datasheet - Page 313

• Manufacturer Part Number: m5m51016btp
• Description: Renesas 16-bit Single-chip Microcomputer M16c Family / M16c/20 Series
• Manufacturer: Renesas Electronics Corporation.

M30245 Group
Rev.2.00 Oct 16, 2006
REJ09B0340-0200
Figure 3.3.2. Set-up procedure of buzzer output
Initialization of timer A0
b7
Initialization of port P7 direction register
b15
0
b7
b7
Buzzer ON
Buzzer OFF
b7
b7
b7
0
0
0F
16
0
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0 0
b8
b0
1
0
b7
0
0
b0
b0
1
b0
0
b0
b0
9F
Timer A0 mode register
TA0MR [Address 0396
16
Selection of timer mode
Pulse output function select bit
Gate function select bit
0 (Must always be “0” in timer mode)
Count source select bit
Count start flag [Address 0380
TABSR
Port P7 direction register [Address 03EF
PD7
Timer A0 mode register [Address 0396
TA0MR
Timer A0 mode register [Address 0396
TA0MR
b7 b6
b4 b3
0 0 : Gate function not available (TA0in pin is a normal port pin)
0 0 : f
Timer A0 count start flag
0 : Pulse is not output (TA0out pin is a normal port pin)
Pulse output function select bit
Port P7
Pulse output function select bit
1 : Starts counting
1 : Pulse is output (Port P7
0 : Pulse is not output
0 : Input mode
b0
1
Timer A0 register
TA0 [Address 0387
0
direction register
16
]
16
0
b7 b6
, 0386
0
0
1
1
16
is TA0
]
0
0
1
1
16
OUT
source
]
Count
f
f
f
f
16
16
1
8
32
C32
16
output pin)
]
]
]
f(X
IN
) : 16MH
Count source period
976.56µs
Z
62.5ns
500ns
f(Xc
2µs
IN
3. Timer A Applications
) : 32.768kH
Z