PIC17LC752T-08/L Microchip Technology, PIC17LC752T-08/L Datasheet - Page 101
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PIC17LC752T-08/L
Manufacturer Part Number
PIC17LC752T-08/L
Description
IC MCU OTP 8KX16 A/D 68PLCC
Manufacturer
Microchip Technology
Series
PIC® 17Cr
Specifications of PIC17LC752T-08/L
Core Processor
PIC
Core Size
8-Bit
Speed
8MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
50
Program Memory Size
16KB (8K x 16)
Program Memory Type
OTP
Ram Size
678 x 8
Voltage - Supply (vcc/vdd)
3 V ~ 5.5 V
Data Converters
A/D 12x10b
Oscillator Type
External
Operating Temperature
0°C ~ 70°C
Package / Case
68-PLCC
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
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Part Number:
PIC17LC752T-08/L
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13.0
The PIC17C7XX has a wealth of timers and time based
functions to ease the implementation of control applica-
tions. These time base functions include three PWM
outputs and four Capture inputs.
Timer1 and Timer2 are two 8-bit incrementing timers,
each with an 8-bit period register (PR1 and PR2, respec-
tively) and separate overflow interrupt flags. Timer1 and
Timer2 can operate either as timers (increment on inter-
nal F
edge of external clock on pin RB4/TCLK12). They are
also software configurable to operate as a single 16-bit
timer/counter. These timers are also used as the time
base for the PWM (Pulse Width Modulation) modules.
Timer3 is a 16-bit timer/counter which uses the TMR3H
and TMR3L registers. Timer3 also has two additional
registers (PR3H/CA1H:PR3L/CA1L) that are config-
urable as a 16-bit period register or a 16-bit capture
register. TMR3 can be software configured to incre-
ment from the internal system clock (F
an external signal on the RB5/TCLK3 pin. Timer3 is the
time base for all of the 16-bit captures.
REGISTER 13-1: TCON1 REGISTER (ADDRESS: 16h, BANK 3)
2000 Microchip Technology Inc.
OSC
bit 7-6
bit 5-4
bit 3
bit 2
bit 1
bit 0
/4 clock), or as counters (increment on falling
TIMER1, TIMER2, TIMER3,
PWMS AND CAPTURES
Legend:
R = Readable bit
- n = Value at POR Reset
CA2ED1:CA2ED0: Capture2 Mode Select bits
00 = Capture on every falling edge
01 = Capture on every rising edge
10 = Capture on every 4th rising edge
11 = Capture on every 16th rising edge
CA1ED1:CA1ED0: Capture1 Mode Select bits
00 = Capture on every falling edge
01 = Capture on every rising edge
10 = Capture on every 4th rising edge
11 = Capture on every 16th rising edge
T16: Timer2:Timer1 Mode Select bit
1 = Timer2 and Timer1 form a 16-bit timer
0 = Timer2 and Timer1 are two 8-bit timers
TMR3CS: Timer3 Clock Source Select bit
1 = TMR3 increments off the falling edge of the RB5/TCLK3 pin
0 = TMR3 increments off the internal clock
TMR2CS: Timer2 Clock Source Select bit
1 = TMR2 increments off the falling edge of the RB4/TCLK12 pin
0 = TMR2 increments off the internal clock
TMR1CS: Timer1 Clock Source Select bit
1 = TMR1 increments off the falling edge of the RB4/TCLK12 pin
0 = TMR1 increments off the internal clock
bit 7
CA2ED1
R/W-0
CA2ED0
R/W-0
OSC
/4), or from
CA1ED1
R/W-0
W = Writable bit
’1’ = Bit is set
CA1ED0
R/W-0
Six other registers comprise the Capture2, Capture3,
and Capture4 registers (CA2H:CA2L, CA3H:CA3L,
and CA4H:CA4L).
Figure 13-1, Figure 13-2 and Figure 13-3 are the con-
trol registers for the operation of Timer1, Timer2 and
Timer3, as well as PWM1, PWM2, PWM3, Capture1,
Capture2, Capture3 and Capture4.
Table 13-1 shows the Timer resource requirements for
these time base functions. Each timer is an open
resource so that multiple functions may operate with it.
TABLE 13-1:
PWM1
PWM2
PWM3
Capture1
Capture2
Capture3
Capture4
Time Base Function
R/W-0
U = Unimplemented bit, read as ‘0’
’0’ = Bit is cleared
T16
TIME-BASE FUNCTION/
RESOURCE REQUIREMENTS
TMR3CS
R/W-0
PIC17C7XX
Timer1
Timer1 or Timer2
Timer1 or Timer2
Timer3
Timer3
Timer3
Timer3
Timer Resource
x = Bit is unknown
TMR2CS TMR1CS
R/W-0
DS30289B-page 101
R/W-0
bit 0
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