PIC18F4331-I/PT Microchip Technology, PIC18F4331-I/PT Datasheet - Page 210

• Manufacturer Part Number: PIC18F4331-I/PT
• Description: IC PIC MCU FLASH 4KX16 44TQFP
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18F4331-I/PT

• Core Size: 8-Bit
• Program Memory Size: 8KB (4K x 16)
• Core Processor: PIC
• Speed: 40MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LVD, Power Control PWM, QEI, POR, PWM, WDT
• Number Of I /o: 36
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 768 x 8
• Voltage - Supply (vcc/vdd): 4.2 V ~ 5.5 V
• Data Converters: A/D 9x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 44-TQFP, 44-VQFP
• Controller Family/series: PIC18
• No. Of I/o's: 36
• Eeprom Memory Size: 256Byte
• Ram Memory Size: 768Byte
• Cpu Speed: 40MHz
• No. Of Timers: 4
• Processor Series: PIC18F
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 768 B
• Interface Type: EUSART, I2C, SPI, SSP
• Maximum Clock Frequency: 40 MHz
• Number Of Programmable I/os: 36
• Number Of Timers: 1 x 8
• Operating Supply Voltage: 2 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: 52715-96, 52716-328, 52717-734, 52712-325, EWPIC18
• Development Tools By Supplier: PG164130, DV164035, DV244005, DV164005, PG164120, ICE2000, ICE4000, DV164136
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 9 bit
• Package: 44TQFP
• Device Core: PIC
• Family Name: PIC18
• Maximum Speed: 40 MHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: XLT44PT3 - SOCKET TRAN ICE 44MQFP/TQFPI3-DB18F4431 - BOARD DAUGHTER ICEPIC3AC164305 - MODULE SKT FOR PM3 44TQFP444-1001 - DEMO BOARD FOR PICMICRO MCUAC164020 - MODULE SKT PROMATEII 44TQFP
• Lead Free Status / Rohs Status: Details
• Other names: PIC18F4331-I/PTR; PIC18F4331-I/PTR

PIC18F2331/2431/4331/4431
17.12.3
While in the Fault state (i.e., one or both FLTA and FLTB
inputs are active), the PWM output signals are driven into
their inactive states. The selection of which PWM outputs
are deactivated (while in the Fault state) is determined by
the FLTCON bit in the FLTCONFIG register as follows:
• FLTCON = 1: When FLTA or FLTB is asserted,
• FLTCON = 0: When FLTA or FLTB is asserted, only
DS39616C-page 208
the PWM outputs (i.e., PWM<7:0>) are driven into
their inactive state.
PWM<5:0> outputs are driven inactive, leaving
PWM<7:6> activated.
Note:
PWM OUTPUTS WHILE IN FAULT
CONDITION
Disabling only three PWM channels and
leaving one PWM channel enabled when in
the Fault state, allows the flexibility to have
at least one PWM channel enabled. None of
the PWM outputs can be enabled (driven
with the PWM Duty Cycle registers) while
FLTCON = 1 and the Fault condition is
present.
Preliminary
17.12.4
The BRFEN bit in the FLTCONFIG register controls the
simulation of a Fault condition, when a breakpoint is hit,
while debugging the application using an In-Circuit
Emulator (ICE) or an In-Circuit Debugger (ICD). Setting
the BRFEN to high, enables the Fault condition on
breakpoint, thus driving the PWM outputs to the
inactive state. This is done to avoid any continuous
keeping of status on the PWM pin, which may result in
damage of the power devices connected to the PWM
outputs.
If BRFEN = 0, the Fault condition on breakpoint is
disabled.
Note:
PWM OUTPUTS IN DEBUG MODE
It is highly recommended to enable the
Fault condition on breakpoint if a debugging
tool is used while developing the firmware
and high-power circuitry. When the device is
ready to program after debugging the
firmware, the BRFEN bit can be disabled.
© 2007 Microchip Technology Inc.