UPD78F0386GK-8EU-A Renesas Electronics America, UPD78F0386GK-8EU-A Datasheet - Page 192

• Manufacturer Part Number: UPD78F0386GK-8EU-A
• Description: MCU 96KB FLASH 5KB RAM
• Manufacturer: Renesas Electronics America
• Series: 78K0/Lx2r

Specifications of UPD78F0386GK-8EU-A

• Core Processor: 78K/0
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: 3-Wire SIO, I²C, LIN, UART/USART
• Peripherals: LCD, LVD, POR, PWM, WDT
• Number Of I /o: 26
• Program Memory Size: 96KB (96K x 8)
• Program Memory Type: FLASH
• Ram Size: 5K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -

6.5 Cautions for 16-Bit Timer/Event Counters 00 and 01
(1) Timer start errors
(2) 16-bit timer capture/compare register 00n setting
(3) Capture register data retention timing
(4) Valid edge setting
(5) Re-triggering one-shot pulse
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An error of up to one clock may occur in the time required for a match signal to be generated after timer start.
This is because 16-bit timer counter 0n (TM0n) is started asynchronously to the count clock.
In the mode in which clear & start occurs on a match between TM0n and CR00n, set 16-bit timer
capture/compare register 00n (CR00n) to other than 0000H. This means a 1-pulse count operation cannot be
performed when 16-bit timer/event counter 0n is used as an external event counter.
The values of 16-bit timer capture/compare registers 000 and 010 (CR000 and CR010) are not guaranteed after
16-bit timer/event counter 00 has been stopped.
Set the valid edge of the TI000 pin after setting bits 2 and 3 (TMC002 and TMC003) of 16-bit timer mode control
register 00 (TMC00) to 0, 0, respectively, and then stopping timer operation. The valid edge is set using bits 4
and 5 (ES000 and ES001) of prescaler mode register 00 (PRM00).
(a) One-shot pulse output by software
(b) One-shot pulse output with external trigger
(c) One-shot pulse output function
Do not set the OSPT00 bit to 1 again while the one-shot pulse is being output.
To output the one-shot pulse again, wait until the current one-shot pulse output is completed.
Do not input the external trigger again while the one-shot pulse is being output.
To output the one-shot pulse again, wait until the current one-shot pulse output is completed.
When using the one-shot pulse output of 16-bit timer/event counter 00 with a software trigger, do not change
the level of the TI000 pin or its alternate function port pin.
Because the external trigger is valid even in this case, the timer is cleared and started even at the level of the
TI000 pin or its alternate function port pin, resulting in the output of a pulse at an undesired timing.
TM0n count value
Count clock
Figure 6-40. Start Timing of 16-Bit Timer Counter 0n (TM0n)
CHAPTER 6 16-BIT TIMER/EVENT COUNTERS 00 AND 01
Timer start
0000H
User’s Manual U17504EJ2V0UD
0001H
0002H
0003H
0004H