m30833fjgp Renesas Electronics Corporation., m30833fjgp Datasheet - Page 292

• Manufacturer Part Number: m30833fjgp
• Description: Renesas 16/32-bit Single-chip Microcomputer M16c Family / M32c/80 Series
• Manufacturer: Renesas Electronics Corporation.

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R
M
21.2 Time Measurement Function (Group 0 and 1)
e
E
3
. v
J
2
0
Table 21.4 Time Measurement Function Specifications
Measurement Channel
Trigger Input Polarity
Measurement Start Condition
Measurement Stop Condition
Interrupt Request Generation Timing
INPCij Pin Function
Selectable Function
NOTES:
Time Measurement Timing
When external trigger is applied, the value of the base timer is stored into the GiTMj register (i=0 to 1; j=0 to
7). Table 21.4 shows specifications of the time measurement function. Table 21.5 lists pin settings of the
time measurement function. Table 21.6 lists settings of time measurement function associated registers.
Figures 21.21 and 21.22 show operating examples of the time measurement function. Figure 21.23 shows
an operating example of the prescaler function and gate function.
1
C
9
3 .
B
8 /
1. INPC0
0
1
3
0
3
J
G
4
a
0 -
o r
n
3 .
1
u
0
, 1
3
p
Item
to INPC0
1
2
(
M
0
0
3
6
2
(1)
C
7
Page 269
8 /
, INPC1
, 3
M
3
1
2
C
to INPC1
f o
8 /
4
3
8
) T
8
Group 0: Channels 0 to 7
Group 1: Channels 1, 2, 6, 7
Rising edge, falling edge or both edges of the INPCij pin
The IFEj bit in the GiFE register is set to "1" (channel j function enabled)
when the FSCj bit (i=0 to1; j=0 to 7) in the GiFS register is set to "1" (time
measurement function selected)
The IFEj bit is set to "0" (channel j function disabled)
• No prescaler : every time a trigger signal is applied
• Prescaler (for channel 6 and channel 7):
The TMijR bit in the interrupt request register (See Figure 10.14) is set to "1"
(interrupt requested) at time measurement timing
Trigger input pin
• Digital filter function
• Cascaded connection function
• Prescaler function (for channel 6 and channel 7)
• Gate function (for channel 6 and channel 7)
every
The digital filter samples a trigger input signal level every f
and passes pulse signals, matching trigger input signal level, three times
Group 0 and group 1 are connected to operate as a 32-bit base timer
Time measurement is executed every
trigger signal is applied
After time measurement by the first trigger input, trigger input cannot be
received. However, trigger input can be received again by matching the
base timer with the GiPOp register, or by setting the GSC bit in the
GiTMCRK register to "1", when the GOC bit in the GiTMCRk register is set
to "1" (gate cleared by matching the base timer with the GiPOp register
(p=4 when k=6, p=5 when k=7))
2
, INPC1
GiTPRk register (k=6, 7) +1
6
to INPC1
7
pins (INPC0
21. Intelligent I/O (Time Measurement Function)
Specification
0
times a trigger signal is applied
to INPC0
GiTPRk register value +1
7
pins during cascaded connection)
(1)
1
or f
BTi
times a
cycles