UPD78F0550MA-FAA-AX Renesas Electronics America, UPD78F0550MA-FAA-AX Datasheet - Page 272
UPD78F0550MA-FAA-AX
Manufacturer Part Number
UPD78F0550MA-FAA-AX
Description
MCU 8BIT 16-SSOP
Manufacturer
Renesas Electronics America
Series
78K0/Kx2-Lr
Datasheet
1.UPD78F0550MA-FAA-AX.pdf
(734 pages)
Specifications of UPD78F0550MA-FAA-AX
Package / Case
*
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Speed
10MHz
Number Of I /o
12
Core Processor
78K/0
Program Memory Type
FLASH
Ram Size
384 x 8
Program Memory Size
4KB (4K x 8)
Data Converters
A/D 4x10b
Oscillator Type
Internal
Peripherals
LVD, POR, PWM, WDT
Connectivity
I²C, LIN, UART/USART
Core Size
8-Bit
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
UPD78F0550MA-FAA-AX
Manufacturer:
Renesas
Quantity:
800
Part Number:
UPD78F0550MA-FAA-AX
Manufacturer:
RENESAS/瑞萨
Quantity:
20 000
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(2) Measuring the pulse width by using one input signal of the TI000 pin (free-running timer mode)
272
Capture trigger input
Capture trigger input
(TMC003, TMC002)
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 interrupt
Capture interrupt
Capture register
Capture register
TM00 register
Operable bits
Overflow flag
(INTTM010)
(INTTM000)
(OVF00)
(CR000)
(CR010)
FFFFH
(TI000)
(TI010)
0000H
0000H
L
L
Figure 6-49. Timing Example of Pulse Width Measurement (2)
00
0000H
A
CHAPTER 6 16-BIT TIMER/EVENT COUNTER 00
01
TMC00 = 04H, PRM00 = 10H, CRC00 = 07H
M
Preliminary User’s Manual U19111EJ2V1UD
A
B
M
0 write clear
N
B
N
C
0 write clear
S
C
D
S
0 write clear
P
D
P
E
0 write clear
Q
E
Q
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