PIC12F1840-I/P Microchip Technology, PIC12F1840-I/P Datasheet - Page 163

• Manufacturer Part Number: PIC12F1840-I/P
• Description: 7 KB Flash, 256 Bytes RAM, 32 MHz Int. Osc, 6 I/0, Enhanced Mid Range Core 8 PDI
• Manufacturer: Microchip Technology

Specifications of PIC12F1840-I/P

• Processor Series: PIC12F
• Core: PIC
• Program Memory Type: Flash
• Program Memory Size: 7 KB
• Data Ram Size: 256 B
• Interface Type: MI2C, SPI, EUSART
• Number Of Timers: 3
• Operating Supply Voltage: 1.8 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: Through Hole
• Package / Case: PDIP-8
• Development Tools By Supplier: MPLAB IDE Software
• Minimum Operating Temperature: - 40 C
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

21.0
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
• 2-bit prescaler
• Dedicated 32 kHz oscillator circuit
• Optionally synchronized comparator out
• Multiple Timer1 gate (count enable) sources
• Interrupt on overflow
• Wake-up on overflow (external clock,
• Time base for the Capture/Compare function
• Special Event Trigger (with ECCP)
• Selectable Gate Source Polarity
FIGURE 21-1:
 2011 Microchip Technology Inc.
Asynchronous mode only)
From Timer0
T1G
Overflow
Reserved
T1GSS<1:0>
Note 1: ST Buffer is high speed type when using T1CKI.
TIMER1 MODULE WITH GATE
CONTROL
2: Timer1 register increments on rising edge.
3: Synchronize does not operate while in Sleep.
T1OSCEN
T1OSO
T1GPOL
T1CKI
T1OSI
Set flag bit
TMR1IF on
Overflow
00
10
TIMER1 BLOCK DIAGRAM
01
TMR1ON
T1GTM
T1OSC
TMR1H
EN
OUT
TMR1
(1)
T1G_IN
(2)
D
R
CK
TMR1L
Q
Q
1
0
Preliminary
TMR1CS<1:0>
Cap. Sensing
0
1
Oscillator
T1GGO/DONE
Q
Internal
Internal
F
OSC
Clock
Clock
F
OSC
EN
/4
D
• Gate Toggle Mode
• Gate Single-pulse Mode
• Gate Value Status
• Gate Event Interrupt
Figure 21-1
Single Pulse
Acq. Control
T1CLK
11
10
01
00
T1GSPM
T1CKPS<1:0>
T1SYNC
Prescaler
1, 2, 4, 8
TMR1ON
is a block diagram of the Timer1 module.
0
1
To Clock Switching Modules
2
0
1
PIC12(L)F1840
Internal
F
Clock
T1GVAL
OSC
TMR1GE
/2
Q1
Synchronized
Synchronize
Interrupt
clock input
D
EN
det
det
Sleep input
Q
(3)
To Comparator Module
DS41441B-page 163
Set
TMR1GIF
T1GCON
Data Bus
RD