PIC16LC72A-04I/SO Microchip Technology, PIC16LC72A-04I/SO Datasheet - Page 31

• Manufacturer Part Number: PIC16LC72A-04I/SO
• Description: IC MCU OTP 2KX14 A/D PWM 28SOIC
• Manufacturer: Microchip Technology
• Series: PIC® 16Cr

Specifications of PIC16LC72A-04I/SO

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 4MHz
• Connectivity: I²C, SPI
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 22
• Program Memory Size: 3.5KB (2K x 14)
• Program Memory Type: OTP
• Ram Size: 128 x 8
• Voltage - Supply (vcc/vdd): 2.5 V ~ 5.5 V
• Data Converters: A/D 5x8b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 28-SOIC (7.5mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

6.0
The Timer2 module timer has the following features:
• 8-bit timer (TMR2 register)
• 8-bit period register (PR2)
• Software programmable prescaler (1:1, 1:4, 1:16)
• Software programmable postscaler (1:1 to 1:16)
• Interrupt on match (TMR2 = PR2)
• Timer2 can be used by SSP and CCP
Timer2 has a control register, shown in Register 6-1.
Timer2 can be shut off by clearing control bit TMR2ON
(T2CON<2>) to minimize power consumption.
Figure 6-1 is a simplified block diagram of the Timer2
module.
REGISTER 6-1:T2CON: TIMER2 CONTROL REGISTER (ADDRESS 12h)
- Readable and writable
- Readable and writable
bit7
1999 Microchip Technology Inc.
bit 7:
bit 6-3:
bit 2:
bit 1-0:
U-0
—
TIMER2 MODULE
Unimplemented: Read as '0'
TOUTPS3:TOUTPS0: Timer2 Output Postscale Select bits
0000 = 1:1 Postscale
0001 = 1:2 Postscale
0010 = 1:3 Postscale
•
•
•
1111 = 1:16 Postscale
TMR2ON: Timer2 On bit
1 = Timer2 is on
0 = Timer2 is off
T2CKPS1:T2CKPS0: Timer2 Clock Prescale Select bits
00 = Prescaler is 1
01 = Prescaler is 4
1x = Prescaler is 16
TOUTPS3 TOUTPS2 TOUTPS1 TOUTPS0 TMR2ON T2CKPS1 T2CKPS0
R/W-0
R/W-0
R/W-0
R/W-0
Preliminary
R/W-0
Additional information on timer modules is available in
the
(DS33023).
FIGURE 6-1:
Note 1: TMR2 register output can be software selected
R/W-0
Sets flag
bit TMR2IF
1:1
PICmicro™
Postscaler
to
by the SSP Module as a baud clock.
1:16
R/W-0
4
PIC16C62B/72A
TMR2
output
Reset
bit0
EQ
TIMER2 BLOCK DIAGRAM
(1)
Mid-Range
R = Readable bit
W = Writable bit
U = Unimplemented bit,
- n = Value at POR reset
Comparator
TMR2 reg
PR2 reg
read as ‘0’
Reference
1:1, 1:4, 1:16
DS35008B-page 31
Prescaler
2
Manual,
F
OSC
/4