UPD78F0550MA-FAA-AX Renesas Electronics America, UPD78F0550MA-FAA-AX Datasheet - Page 282

• Manufacturer Part Number: UPD78F0550MA-FAA-AX
• Description: MCU 8BIT 16-SSOP
• Manufacturer: Renesas Electronics America
• Series: 78K0/Kx2-Lr

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: -

(7) Operation of OVF00 flag
(8) One-shot pulse output
282
(a) Setting OVF00 flag (1)
(b) Clearing OVF00 flag
One-shot pulse output operates correctly in the free-running timer mode or the clear & start mode entered by the
TI000 pin valid edge. The one-shot pulse cannot be output in the clear & start mode entered upon a match
between TM00 and CR000.
The OVF00 flag is set to 1 in the following case, as well as when TM00 overflows.
Select the clear & start mode entered upon a match between TM00 and CR000.
Set CR000 to FFFFH.
When TM00 matches CR000 and TM00 is cleared from FFFFH to 0000H
Even if the OVF00 flag is cleared to 0 after TM00 overflows and before the next count clock is counted
(before the value of TM00 becomes 0001H), it is set to 1 again and clearing is invalid.
Count pulse
INTTM000
OVF00
CR000
CHAPTER 6 16-BIT TIMER/EVENT COUNTER 00
TM00
Figure 6-57. Operation Timing of OVF00 Flag
Preliminary User’s Manual U19111EJ2V1UD
FFFFH
FFFEH
FFFFH
0000H
0001H