M30802FCGP#D3 Renesas Electronics America, M30802FCGP#D3 Datasheet - Page 123

• Manufacturer Part Number: M30802FCGP#D3
• Description: IC M16C MCU FLASH 128K 144LQFP
• Manufacturer: Renesas Electronics America
• Series: M16C™ M16C/80r

Specifications of M30802FCGP#D3

• Core Processor: M16C/80
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: SIO, UART/USART
• Peripherals: DMA, PWM, WDT
• Number Of I /o: 121
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Ram Size: 10K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 10x10b, D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 144-LQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

M
R
R
e
E
1
v
J
6
Table 14.3 Timer specifications in pulse period/pulse width measurement mode
Figure 14.6 Timer Bi mode register in pulse period/pulse width measurement mode
Note 1: An interrupt request is not generated when the first effective edge is input after the timer has started counting.
Note 2: The value read out from the timer Bi register is indeterminate until the second effective edge is input after the timer.
1 .
0
Count source
Count operation
Count start condition
Count stop condition
Interrupt request generation timing • When measurement pulse's effective edge is input (Note 1)
TBi
Read from timer
Write to timer
C
(3) Pulse period/pulse width measurement mode
9
0 .
8 /
B
In this mode, the timer measures the pulse period or pulse width of an external signal. (See Table 14.3)
Figure 14.6 shows the timer Bi mode register in pulse period/pulse width measurement mode. Figure
14.7 shows the operation timing when measuring a pulse period. Figure 14.8 shows the operation timing
when measuring a pulse width.
0
IN
0
Timer Bi mode register
0
b7
1
A
8
G
pin function
b6
u
7
o r
. g
0 -
b5
u
1
0
Item
p
0
, 2
b4
0
2
b3
0
0
b2
5
b1
1
Page 110
0
b0
Note 1: This flag is indeterminate after reset. When the timer Bi start flag = 1, the timer Bi overflow flag is
Note 2: Timer B0, timer B3.
Note 3: Timer B1, timer B2, timer B4, timer B5.
Bit symbol
TMOD0
TMOD1
TCK0
TCK1
MR0
MR1
MR2
MR3
f1, f8, f32, fc32
• Up count
• Counter value “0000
Count start flag is set (= 1)
Count start flag is reset (= 0)
• Timer overflow. When an overflow occurs, the timer Bi overflow flag set to “1”
Measurement pulse input (Set the corresponding function select register A to I/O port.)
When timer Bi register is read, it indicates the reload register’s content
(measurement result) (Note 2)
Cannot be written to
Symbol
TBiMR(i = 0 to 5) 035B
pulse's effective edge and the timer continues counting
simultaneously. The timer Bi overflow flag cleared to “0” by writing to the
timer mode register at the next count timing or later after the timer Bi overflow
flag was set to "1". At this time, make sure the timer start flag is set to "1".
cleared to "0" by writing to the timer Bi mode register at the next count timing or later after the timer Bi
overflow flag was set to "1". The Timer Bi overflow flag cannot be set to "1" in a program.
f o
3
2
9
Timer Bi overflow
flag ( Note 1)
Operation mode
select bit
Measurement mode
select bit
Nothing is assigned (i = 1, 2, 4, 5).
When write, set "0". When read, its content is indeterminate.
Count source
select bit
0 (Set to “0” in pulse period/pulse width measurement mode; i = 0, 3)
Bit name
031B
Address
16
16
to 035D
to 031D
16
” is transferred to reload register at measurement
1 0 : Pulse period / pulse width
b1 b0
b3 b2
0 0 : Pulse period measurement (Interval between
0 1 : Pulse period measurement (Interval between
1 0 : Pulse width measurement (Interval between
1 1 : Must not be set
0 : Timer did not overflow
1 : Timer has overflowed
b7 b6
0 0 : f
0 1 : f
1 0 : f
1 1 : f
16
16
measurement pulse's rising edge to rising edge)
measurement mode
measurement pulse's falling edge to falling edge)
measurement pulse's falling edge to rising edge,
and between rising edge to falling edge)
Specification
1
8
32
C32
00XX0000
00XX0000
When reset
2
2
Function
(Note 2)
(Note 3)
R
14. Timer B
W