PIC16LF1527-I/MR Microchip Technology, PIC16LF1527-I/MR Datasheet - Page 169

• Manufacturer Part Number: PIC16LF1527-I/MR
• Description: MCU PIC 28KB FLASH 64QFN
• Manufacturer: Microchip Technology
• Series: PIC® XLP™ 16Fr

Specifications of PIC16LF1527-I/MR

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: I²C, LIN, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 54
• Program Memory Size: 28KB (16K x 14)
• Program Memory Type: FLASH
• Ram Size: 1.5K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 3.6 V
• Data Converters: A/D 30x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-VFQFN Exposed Pad
• Processor Series: PIC16F
• Core: PIC
• Data Ram Size: 768 B
• Interface Type: MI2C, SPI, EUSART
• Number Of Timers: 9
• Operating Supply Voltage: 1.8 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Development Tools By Supplier: MPLAB IDE Software
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

18.1
The Timer1/3/5 module is a 16-bit incrementing counter
which is accessed through the TMRxH:TMRxL register
pair. Writes to TMRxH or TMRxL directly update the
counter.
When used with an internal clock source, the module is
a timer and increments on every instruction cycle.
When used with an external clock source, the module
can be used as either a timer or counter and incre-
ments on every selected edge of the external source.
Timer1/3/5 is enabled by configuring the TMRxON and
TMRxGE bits in the TxCON and TxGCON registers,
respectively.
selections.
TABLE 18-1:
TABLE 18-2:
 2011 Microchip Technology Inc.
TMRxCS1
TMRxON
0
0
1
1
0
0
1
1
1
Timer1/3/5 Operation
Table 18-1
TIMER1/3/5 ENABLE
SELECTIONS
CLOCK SOURCE SELECTIONS
TMRxCS0
TMRxGE
displays the Timer1/3/5 enable
0
1
0
1
0
1
0
0
1
Off
Off
Always On
Count Enabled
Timer1/3/5
Operation
SOSCEN
x
x
0
0
x
Preliminary
Instruction Clock (F
System Clock (F
External Clocking on T1CKI Pin
External Clocking on T1CKI Pin
Capacitive Sensing Oscillator
18.2
The TMRxCS<1:0> and SOSCEN bits of the TxCON
register are used to select the clock source for
Timer1/3/5.
selections.
18.2.1
When the internal clock source is selected the
TMRxH:TMRxL register pair will increment on multiples
of F
When the F
Timer1/3/5 register value will increment by four counts
every instruction clock cycle. Due to this condition, a
2 LSB error in resolution will occur when reading the
Timer1/3/5 value. To utilize the full resolution of
Timer1/3/5, an asynchronous input signal must be used
to gate the Timer1/3/5 clock input.
The following asynchronous sources may be used:
• Asynchronous event on the TxG pin to Timer1/3/5
18.2.2
When the external clock source is selected, the
Timer1/3/5 module may work as a timer or a counter.
When enabled to count, Timer1/3/5 is incremented on
the rising edge of the external clock input TxCKI or the
capacitive sensing oscillator signal. Either of these
external clock sources can be synchronized to the
microcontroller
asynchronously.
When used as a timer with a clock oscillator, an
external 32.768 kHz crystal can be used in conjunction
with the dedicated internal oscillator circuit.
gate
Note:
OSC
as determined by the Timer1/3/5 prescaler.
OSC
PIC16(L)F1526/27
Clock Source Selection
OSC
•Timer1/3/5 enabled after POR
•Write to TMRxH or TMRxL
•Timer1/3/5 is disabled
•Timer1/3/5 is disabled (TMRxON = 0 )
INTERNAL CLOCK SOURCE
EXTERNAL CLOCK SOURCE
In Counter mode, a falling edge must be
registered by the counter prior to the first
incrementing rising edge after any one or
more of the following conditions:
OSC
)
Table 18-2
when TxCKI is high then Timer1/3/5
is enabled (TMRxON = 1 ) when
TxCKI is low.
/4)
Clock Source
internal clock source is selected, the
system
displays the clock source
clock
or
DS41458A-page 169
they
can
run