UPD78F0551MA-FAA-AX Renesas Electronics America, UPD78F0551MA-FAA-AX Datasheet - Page 315

• Manufacturer Part Number: UPD78F0551MA-FAA-AX
• Description: MCU 8BIT 16-SSOP
• Manufacturer: Renesas Electronics America
• Series: 78K0/Kx2-Lr

Specifications of UPD78F0551MA-FAA-AX

• Core Processor: 78K/0
• Core Size: 8-Bit
• Speed: 10MHz
• Connectivity: I²C, LIN, UART/USART
• Peripherals: LVD, POR, PWM, WDT
• Number Of I /o: 9
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 4x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

78K0/Kx2-L
(3) Measuring the pulse width by using one input signal of the TI000 pin (clear & start mode entered by the TI000
R01UH0028EJ0400 Rev.4.00
Sep 27, 2010
pin valid edge input)
Set the clear & start mode entered by the TI000 pin valid edge (TMC003 and TMC002 = 10). The count value of
TM00 is captured to CR000 in the phase reverse to the valid edge of the TI000 pin, and the count value of TM00 is
captured to CR010 and TM00 is cleared (0000H) when the valid edge of the TI000 pin is detected. Therefore, a cycle
is stored in CR010 if TM00 does not overflow.
If an overflow occurs, take the value that results from adding 10000H to the value stored in CR010 as a cycle. Clear
bit 0 (OVF00) of 16-bit timer mode control register 00 (TMC00) to 0.
<1> Pulse cycle =
<2> High-level pulse width = (10000H × Number of times OVF00 bit is set to 1 + Captured value of CR000) × Count
<3> Low-level pulse width = (Pulse cycle − High-level pulse width)
Capture & count clear input
Capture trigger input
(TMC003, TMC002)
Capture interrupt
Capture interrupt
Capture register
Capture register
TM00 register
Operable bits
Overflow flag
(INTTM010)
(INTTM000)
(CR000)
(CR010)
(OVF00)
(TI000)
(TI010)
FFFFH
0000H
Figure 6-51. Timing Example of Pulse Width Measurement (3)
00
L
L
(10000H × Number of times OVF00 bit is set to 1 + Captured value of CR010) × Count
clock cycle
clock cycle
0000H
0000H
• TMC00 = 08H, PRM00 = 10H, CRC00 = 07H
10
M
<2>
A
M
<1>
<3>
N
A
CHAPTER 6 16-BIT TIMER/EVENT COUNTER 00
<2>
<1>
N
B
<3>
S
0 write clear
B
<2>
<1>
S
C
<3>
P
C
<2>
<1>
P
D
<3>
Q
D
Q
00
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