Copy Microcontroller PIC16LF737 Eeprom file and rewrite the firmware to blank MCU PIC16LF737 for MCU cloning, through microcontroller reverse engineering we will be able to acquire the circuitry scheme of PIC16LF737;
A single software programmable prescaler is available for use with either Timer0 or the Watchdog Timer (WDT), but not both simultaneously. The prescaler assignment is controlled by the PSA bit of the OPTION register. To assign the prescaler to Timer0, the PSA bit must be cleared to 0 when mcu attiny2313a hex extraction.
There are 8 prescaler options for the Timer0 module ranging from 1:2 to 1:256. The prescale values are selectable via the PS<2:0> bits of the OPTION register. In order to have a 1:1 prescaler value for the Timer0 module, the prescaler must be assigned to the WDT module.
The prescaler is not readable or writable. When the prescaler is assigned to the Timer0 module, all instructions writing to the TMR0 register will clear the prescaler. When the prescaler is assigned to WDT, a CLRWDT instruction will clear the prescaler along with the WDT before chip attiny4313a code extraction.
As a result of having the prescaler assigned to either Timer0 or the WDT, it is possible to generate an unintended device Reset when switching prescaler values. When changing the prescaler assignment from Timer0 to the WDT module, the instruction sequence must be executed after ic attiny261 code eeprom extraction.
Timer0 will generate an interrupt when the TMR0 register overflows from FFh to 00h. The T0IF interrupt flag bit of the INTCON register is set every time the TMR0 register overflows, regardless of whether or not the Timer0 interrupt is enabled. The T0IF bit must be cleared in software.
The Timer0 interrupt enable is the T0IE bit of the INTCON register. When Timer0 is in Counter mode, the synchronization of the T0CKI input and the Timer0 register is accomplished by sampling the prescaler output on the Q2 and Q4 cycles of the internal phase clocks.
Therefore, the high and low periods of the external clock source must meet the timing requirements as shown in
Section 17.0 “Electrical Specifications”.
The Timer1 module is a 16-bit timer/counter with the following features:
- 16-bit timer/counter register pair (TMR1H:TMR1L)
- Programmable internal or external clock source
- 3-bit prescalerOptional LP oscillator
Synchronous or asynchronous operation
Timer1 gate (count enable) via comparator or
T1G pin
Interrupt on overflow
Wake-up on overflow (external clock,
Asynchronous mode only)
Time base for the Capture/Compare function
(PIC16F685/PIC16F690 only)
Special Event Trigger (with ECCP)
The Timer1 module is a 16-bit incrementing counter which is accessed through the TMR1H:TMR1L register pair. Writes to TMR1H or TMR1L directly update the counter. When used with an internal clock source, the module is a timer. When used with an external clock source, the module can be used as either a timer or counter.
- The TMR1CS bit of the T1CON register is used to select the clock source. When TMR1CS = 0, the clock source is FOSC/4. When TMR1CS = 1, the clock source is supplied externally.