PIC18F2550-I/SP Microchip Technology, PIC18F2550-I/SP Datasheet - Page 7

• Manufacturer Part Number: PIC18F2550-I/SP
• Description: IC PIC MCU FLASH 16KX16 28DIP
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18F2550-I/SP

• Program Memory Type: FLASH
• Program Memory Size: 32KB (16K x 16)
• Package / Case: 28-DIP (0.300", 7.62mm)
• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 48MHz
• Connectivity: I²C, SPI, UART/USART, USB
• Peripherals: Brown-out Detect/Reset, HLVD, POR, PWM, WDT
• Number Of I /o: 24
• Eeprom Size: 256 x 8
• Ram Size: 2K x 8
• Voltage - Supply (vcc/vdd): 4.2 V ~ 5.5 V
• Data Converters: A/D 10x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Processor Series: PIC18F
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 1536 B
• Interface Type: SPI, I2C, EAUSART
• Maximum Clock Frequency: 48 MHz
• Number Of Programmable I/os: 24
• Number Of Timers: 4
• Operating Supply Voltage: 2 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: Through Hole
• 3rd Party Development Tools: 52715-96, 52716-328, 52717-734, 52712-325, EWPIC18
• Development Tools By Supplier: PG164130, DV164035, DV244005, DV164005, PG164120, ICE2000, ICE4000, DM163025, DV164136
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 10 Channel
• Package: 28SPDIP
• Device Core: PIC
• Family Name: PIC18
• Maximum Speed: 48 MHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: I3-DB18F4550 - BOARD DAUGHTER ICEPIC3DM163025 - PIC DEM FULL SPEED USB DEMO BRDDVA18XP280 - DEVICE ADAPTER 18F2220 PDIP 28LD
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

5. Module: ECCP
EXAMPLE 4:
6. Module: ECCP
© 2009 Microchip Technology Inc.
When monitoring a shutdown condition using a
bit test on the ECCPASE bit (ECCP1AS<7>) or
performing a bit operation on the ECCPASE bit,
the device may produce unexpected results.
Work around
Before performing a bit test or bit operation on
the ECCPASE bit, copy the ECCP1AS register to
the working register and perform the operation
there.
By avoiding these operations on the ECCPASE
bit in the ECCP1AS register, the module will
operate normally.
In Example 4, ECCPASE bit operations are
performed on the W register.
Affected Silicon Revisions
When the CCP1 auto-shutdown feature is config-
ured
(ECCP1DEL<7>) = 1), the pulse terminates
immediately in a shutdown event. In addition, the
pulse may restart within the period, if the shut-
down condition expires. This may result in the
generation of short pulses on the PWM output(s).
Work around
Configure the auto-shutdown for software
restart
(ECCP1DEL<7>). The PWM can be re-enabled,
after the shutdown condition expires, by clearing
the ECCPASE bit (ECCP1AS<7>).
Affected Silicon Revisions
A3
A3
X
X
MOVF
BTFSC
BRA
for
by
automatic
B4
B4
ECCPASE OPERATION
clearing
ECCP1AS, W
WREG, ECCPASE
SHUTDOWN_ROUTINE
B5
B5
restart
the
B6
B6
PRSEN
(PRSEN
PIC18F2455/2550/4455/4550
B7
B7
bit
bit
7. Module: ECCP
When operating either Timer1 or Timer3 as a
counter with a prescale value other than 1:1 and
operating the ECCP in Compare mode with the
Special
CCP1M<3:0> = 1011), the Special Event Trigger
Reset of the timer occurs as soon as there is a
match
CCPR1H:CCPR1L.
This differs from the PIC18F452, where the
Special Event Trigger Reset of the timer occurs
on the next rollover of the prescale counter after
the
CCPR1H:CCPR1L.
Work around
To achieve the same timer Reset period on the
PIC18F4550 family as the PIC18F452 family for a
given clock source, add 1 to the value in
CCPR1H:CCPR1L.
CCPR1H:CCPR1L = x for the PIC18F452, to
achieve
PIC18F4550 family, CCPR1H:CCPR1L = x + 1,
where the prescale is 1, 2, 4 or 8 depending on the
T1CKPS<1:0> bit values.
Affected Silicon Revisions
A3
X
match
the
Event
between
B4
between
same
Trigger
B5
In
Reset
TMRxH:TMRxL
TMRxH:TMRxL
other
(CCP1CON
period
DS80478A-page 7
B6
words,
on
B7
and
bits,
and
the
if