PIC24FJ256GB110-I/PT Microchip Technology, PIC24FJ256GB110-I/PT Datasheet - Page 203

• Manufacturer Part Number: PIC24FJ256GB110-I/PT
• Description: IC PIC MCU FLASH 256K 100TQFP
• Manufacturer: Microchip Technology
• Series: PIC® 24Fr

Specifications of PIC24FJ256GB110-I/PT

• Program Memory Type: FLASH
• Program Memory Size: 256KB (85.5K x 24)
• Package / Case: 100-TFQFP
• Core Processor: PIC
• Core Size: 16-Bit
• Speed: 32MHz
• Connectivity: I²C, SPI, UART/USART, USB OTG
• Peripherals: Brown-out Detect/Reset, LVD, POR, PWM, WDT
• Number Of I /o: 83
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 2 V ~ 3.6 V
• Data Converters: A/D 16x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Processor Series: PIC24FJ
• Core: PIC
• Data Bus Width: 16 bit
• Data Ram Size: 16 KB
• Interface Type: I2C/SPI/UART
• Maximum Clock Frequency: 32 MHz
• Number Of Programmable I/os: 84
• Number Of Timers: 5
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: 52713-733, 52714-737, 53276-922, EWDSPIC
• Development Tools By Supplier: PG164130, DV164035, DV244005, DV164005, PG164120, DM240001, DM240011
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 16-ch x 10-bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: 876-1004 - PIC24 BREAKOUT BOARDDM240011 - KIT STARTER MPLAB FOR PIC24F MCUMA240014 - MODULE PLUG-IN PIC24DM240001 - BOARD DEMO PIC24/DSPIC33/PIC32
• Eeprom Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

17.3
The USB OTG module has many conditions that can
be configured to cause an interrupt. All interrupt
sources use the same interrupt vector.
Figure 17-4 shows the interrupt logic for the USB mod-
ule. There are two layers of interrupt registers in the
USB module. The top level consists of overall USB sta-
tus interrupts; these are enabled and flagged in the
U1IE and U1IR registers, respectively. The second
level consists of USB error conditions, which are
enabled and flagged in the U1EIR and U1EIE registers.
An interrupt condition in any of these triggers a USB
Error Interrupt Flag (UERRIF) in the top level.
FIGURE 17-4:
© 2008 Microchip Technology Inc.
USB Interrupts
CRC5EE (EOFEE)
CRC5EF (EOFEF)
Second Level (USB Error) Interrupts
CRC16EE
CRC16EF
DFN8EE
DFN8EF
DMAEF
DMAEE
BTOEE
BTOEF
BTSEF
BTSEE
PIDEE
PIDEF
Top Level (USB Status) Interrupts
USB OTG INTERRUPT FUNNEL
Top Level (USB OTG) Interrupts
PIC24FJ256GB110 FAMILY
Preliminary
URSTIE (DETACHIE)
URSTIF (DETACHIF)
17.3.1
Unlike device level interrupts, the USB OTG interrupt
status flags are not freely writable in software. All USB
OTG flag bits are implemented as hardware set only
bits. Additionally, these bits can only be cleared in soft-
ware by writing a ‘1’ to their locations (i.e., performing
a MOV type instruction). Writing a ‘0’ to a flag bit (i.e., a
BCLR instruction) has no effect.
RESUMEIF
RESUMEIE
ATTACHIE
ATTACHIF
SESENDIE
VBUSVDIE
T1MSECIF
SESENDIF
VBUSVDIF
Note:
(UERRIF)
TIMSECIE
LSTATEIE
LSTATEIF
STALLIE
STALLIF
SESVDIE
SESVDIF
UERRIE
ACTVIE
IDLEIE
ACTVIF
IDLEIF
TRNIE
SOFIE
TRNIF
SOFIF
IDIF
IDIE
CLEARING USB OTG INTERRUPTS
Throughout this data sheet, a bit that can
only be cleared by writing a ‘1’ to its loca-
tion is referred to as “Write 1 to clear”. In
register descriptions, this function is
indicated by the descriptor “K”.
Set USB1IF
DS39897B-page 201