UPD78F0552MA-FAA-AX Renesas Electronics America, UPD78F0552MA-FAA-AX Datasheet - Page 314
UPD78F0552MA-FAA-AX
Manufacturer Part Number
UPD78F0552MA-FAA-AX
Description
MCU 8BIT 16-SSOP
Manufacturer
Renesas Electronics America
Series
78K0/Kx2-Lr
Datasheet
1.UPD78F0551MA-FAA-AX.pdf
(822 pages)
Specifications of UPD78F0552MA-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
16KB (16K x 8)
Program Memory Type
FLASH
Ram Size
768 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
-
- Current page: 314 of 822
- Download datasheet (6Mb)
78K0/Kx2-L
(2) Measuring the pulse width by using one input signal of the TI000 pin (free-running timer mode)
R01UH0028EJ0400 Rev.4.00
Sep 27, 2010
Set the free-running timer mode (TMC003 and TMC002 = 01). The count value of TM00 is captured to CR000 in the
phase reverse to the valid edge detected on the TI000 pin. When the valid edge of the TI000 pin is detected, the
count value of TM00 is captured to CR010.
By this measurement method, values are stored in separate capture registers when a width from one edge to another
is measured. Therefore, the capture values do not have to be saved. By subtracting the value of one capture register
from that of another, a high-level width, low-level width, and cycle are calculated.
If an overflow occurs, the value becomes negative if one captured value is simply subtracted from another and,
therefore, a borrow occurs (bit 0 (CY) of the program status word (PSW) is set to 1). If this happens, ignore CY and
take the calculated value as the pulse width. In addition, clear bit 0 (OVF00) of 16-bit timer mode control register 00
(TMC00) to 0.
Capture trigger 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
0000H
L
L
Figure 6-50. Timing Example of Pulse Width Measurement (2)
00
0000H
A
• TMC00 = 04H, PRM00 = 10H, CRC00 = 07H
01
M
A
B
M
0 write clear
N
CHAPTER 6 16-BIT TIMER/EVENT COUNTER 00
B
N
C
0 write clear
S
C
D
S
0 write clear
P
D
P
E
0 write clear
Q
E
Q
300
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