PIC16C770/P Microchip Technology, PIC16C770/P Datasheet - Page 54

• Manufacturer Part Number: PIC16C770/P
• Description: IC MCU CMOS A/D 2K 20MHZ 20-DIP
• Manufacturer: Microchip Technology
• Series: PIC® 16Cr

Specifications of PIC16C770/P

• Program Memory Type: OTP
• Program Memory Size: 3.5KB (2K x 14)
• Package / Case: 20-DIP (0.300", 7.62mm)
• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: I²C, SPI
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 15
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 4 V ~ 5.5 V
• Data Converters: A/D 6x12b
• Oscillator Type: Internal
• Operating Temperature: 0°C ~ 70°C
• Processor Series: PIC16C
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 256 B
• Interface Type: I2C/SPI/SSP
• Maximum Clock Frequency: 20 MHz
• Number Of Programmable I/os: 16
• Number Of Timers: 3
• Operating Supply Voltage: 2.5 V to 5.5 V
• Maximum Operating Temperature: + 70 C
• Mounting Style: Through Hole
• 3rd Party Development Tools: 52715-96, 52716-328, 52717-734
• Development Tools By Supplier: ICE2000
• Minimum Operating Temperature: 0 C
• On-chip Adc: 6-ch x 12-bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: DVA16XP200 - ADAPTER ICE 20DIP/SOIC/SSOPAC164028 - MODULE SKT PROMATEII 20SOIC/DIP
• Eeprom Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

PIC16C717/770/771
7.2
The Timer2 module has an 8-bit period register PR2.
Timer2 increments from 00h until it matches PR2 and
then resets to 00h on the next increment cycle. PR2 is
a readable and writable register. The PR2 register is
initialized to FFh upon RESET.
7.3
The output of TMR2 (before the postscaler) is fed to the
Synchronous Serial Port module which optionally uses
it to generate shift clock.
TABLE 7-1:
DS41120B-page 52
Address
0Bh,8Bh,
10Bh,18Bh
0Ch
8Ch
11h
12h
92h
Legend:
Timer2 Interrupt
Output of TMR2
x = unknown, u = unchanged, - = unimplemented read as ’0’. Shaded cells are not used by the Timer2 module.
Name
INTCON
PIR1
PIE1
TMR2
T2CON
PR2
REGISTERS ASSOCIATED WITH TIMER2 AS A TIMER/COUNTER
Timer2 register
Timer2 Period Register
Bit 7
GIE
—
—
—
TOUTPS3 TOUTPS2 TOUTPS1 TOUTPS0 TMR2ON T2CKPS1 T2CKPS0 -000 0000 -000 0000
Bit 6
PEIE
ADIF
ADIE
Bit 5
T0IE
—
—
INTE
Bit 4
—
—
SSPIE
SSPIF
RBIE
Bit 3
FIGURE 7-1:
Note:
Sets flag
bit TMR2IF
CCP1IF
CCP1IE
Postscaler
1:1
Bit 2
T0IF
to
TMR2 register output can be software
selected by the SSP Module as a baud
clock.
1:16
4
TMR2
output (1)
TMR2IE
TMR2IF
RESET
Bit 1
INTF
EQ
Comparator
Timer2 Block Diagram
TMR2 reg
PR2 reg
TMR1IE
TMR1IF
RBIF
Bit 0
2002 Microchip Technology Inc.
0000 000x 0000 000u
-0-- 0000 -0-- 0000
-0-- 0000 -0-- 0000
0000 0000 0000 0000
1111 1111 1111 1111
Value on:
1:1, 1:4, 1:16
POR,
BOR
Prescaler
2
Value on
RESETS
all other
Fosc/4