M30281F6HP#U5B Renesas Electronics America, M30281F6HP#U5B Datasheet - Page 140

• Manufacturer Part Number: M30281F6HP#U5B
• Description: IC M16C/28 MCU FLASH 48K 64LQFP
• Manufacturer: Renesas Electronics America
• Series: M16C™ M16C/Tiny/28r

Specifications of M30281F6HP#U5B

• Core Processor: M16C/60
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: I²C, IEBus, SIO, UART/USART
• Peripherals: DMA, POR, PWM, Voltage Detect, WDT
• Number Of I /o: 55
• Program Memory Size: 48KB (48K x 8)
• Program Memory Type: FLASH
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 13x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 64-LQFP
• For Use With: R0K330290S000BE - KIT EVAL STARTER FOR M16C/29M30290T2-CPE - EMULATOR COMPACT M16C/26A/28/29M30290T2-CPE-HP - EMULATOR COMPACT FOR M16C/TINY
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

M
R
R
1
e
E
Table 12.8 Specifications in Pulse Period and Pulse Width Measurement Mode
Figure 12.20 TBiMR Register in Pulse Period and Pulse Width Measurement Mode
6
Notes:
1. Interrupt request is not generated when the first effective edge is input after the timer started counting.
2. Value read from TBi register is indeterminate until the second valid edge is input after the timer starts counting.
3. The TB0S to TB2S bits are assigned to the bit 5 to bit 7 in the TABSR register .
. v
J
12.2.3 Pulse Period and Pulse Width Measurement Mode
Count source
Count operation
Count start condition
Count stop condition
Interrupt request generation timing • When an effective edge of measurement pulse is input
TBi
Read from timer
Write to timer
C
0
2
2 /
In pulse period and pulse width measurement mode, the timer measures pulse period or pulse width of an
external signal (see Table 12.8). Figure 12.20 shows the TBiMR register in pulse period and pulse width
measurement mode. Figure 12.21 shows the operation timing when measuring a pulse period. Figure
12.22 shows the operation timing when measuring a pulse width.
9
0 .
B
IN
8
0
0
0
G
pin function
4
J
o r
7
a
0 -
. n
Item
NOTES:
u
Timer Bi Mode Register (i=0 to 2)
b7
p
2
1.This flag is indeterminate after reset. When the TBiS bit is set to "1" (start counting), the MR3 bit is cleared to “0” (no overflow)
3
0
b6
by writing to the TBiMR register at the next count timing or later after the MR3 bit was set to “1” (overflowed). The MR3 bit
cannot be set to “1” by program. The TB0S to TB2S bits are assigned to the bit 5 to bit 7 in the TABSR register.
, 1
(
0
M
b5
2
1
0
b4
6
0
C
b3
7
2 /
b2
, 8
page 118
b1
1
M
0
b0
1
Bit Symbol
6
f
• Increment
• Counter value is transferred to reload register at an effective edge of mea-
Set TBiS (i=0 to 2) bit
Set TBiS bit to “0” (stop counting)
• Timer overflow. When an overflow occurs, MR3 bit in the TBiMR register is set to
Measurement pulse input
Contents of the reload register (measurement result) can be read by reading TBi register
Value written to TBi register is written to neither reload register nor counter
1
TMOD0
TMOD1
C
TCK0
TCK1
surement pulse. The counter value is set to “0000
MR0
MR3
MR1
MR2
, f
“1” (overflowed) simultaneously. MR3 bit is cleared to “0” (no overflow) by writ-
ing to TBiMR register at the next count timing or later after MR3 bit was set to
“1”. At this time, make sure TBiS bit is set to “1” (start counting).
2 /
TB0MR to TB2MR
Symbol
f o
2
8
, f
) B
3
8
8
, f
Timer Bi overflow
flag
Operation mode
select bit
Measurement mode
select bit
TB0MR register
Set to “0” in pulse period and pulse width measurement mode
TB1MR, TB2MR registers
Nothing is assigned. When write, set to “0”. When read, its content turns out to be
indeterminate.
Count source
select bit
5
32
(1)
Bit Name
, f
C32
Address
039B
16
to 039D
1 0 : Pulse period / pulse width
b3 b2
0 0 : Pulse period measurement
0 1 : Pulse period measurement
1 0 : Pulse width measurement
1 1 : Do not be set.
b7 b6
b1 b0
0 : Timer did not overflow
1 : Timer has overflowed
0 0 : f
0 1 : f
1 0 : f
1 1 : f
(3)
(Measurement between a falling edge and the
next falling edge of measured pulse)
(Measurement between a rising edge and the next
rising edge of measured pulse)
measurement mode
(Measurement between a falling edge and the
next rising edge of measured pulse and between
a rising edge and the next falling edge)
16
1
8
32
C32
to “1” (start counting)
or f
After Reset
00XX0000
2
Specification
2
Function
16
” to continue counting.
(1)
RW
RW
RW
RW
RW
RW
RW
RW
RO
12. Timer
(2)