PIC18LF44J50-I/ML Microchip Technology, PIC18LF44J50-I/ML Datasheet - Page 367
![IC PIC MCU FLASH 16K 2V 44-QFN](/photos/6/81/68122/150-44-qfn_sml.jpg)
PIC18LF44J50-I/ML
Manufacturer Part Number
PIC18LF44J50-I/ML
Description
IC PIC MCU FLASH 16K 2V 44-QFN
Manufacturer
Microchip Technology
Series
PIC® XLP™ 18Fr
Datasheets
1.PIC18LF24J10-ISS.pdf
(32 pages)
2.PIC18LF24J50-ISS.pdf
(554 pages)
3.PIC18LF24J50-ISS.pdf
(12 pages)
Specifications of PIC18LF44J50-I/ML
Program Memory Type
FLASH
Program Memory Size
16KB (8K x 16)
Package / Case
44-QFN
Core Processor
PIC
Core Size
8-Bit
Speed
48MHz
Connectivity
I²C, SPI, UART/USART, USB
Peripherals
Brown-out Detect/Reset, DMA, POR, PWM, WDT
Number Of I /o
34
Ram Size
3.8K x 8
Voltage - Supply (vcc/vdd)
2 V ~ 3.6 V
Data Converters
A/D 13x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Processor Series
PIC18LF
Core
PIC
Data Bus Width
8 bit
Data Ram Size
3776 B
Interface Type
EUSART, I2C, SPI
Maximum Clock Frequency
31 KHz
Number Of Programmable I/os
22
Number Of Timers
5
Operating Supply Voltage
2 V to 3.6 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, DM183022, DM183032, DV164136, MA180024
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit, 13 Channel
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
- Current page: 367 of 554
- Download datasheet (9Mb)
21.5.1
The USB Interrupt Status register (Register 21-7) con-
tains the flag bits for each of the USB status interrupt
sources. Each of these sources has a corresponding
interrupt enable bit in the UIE register. All of the USB
status flags are ORed together to generate the USBIF
interrupt flag for the microcontroller’s interrupt funnel.
Once an interrupt bit has been set by the SIE, it must
be cleared by software by writing a ‘0’. The flag bits
can also be set in software, which can aid in firmware
debugging.
REGISTER 21-7:
© 2009 Microchip Technology Inc.
bit 7
Legend:
R = Readable bit
-n = Value at POR
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
Note 1:
U-0
—
2:
3:
4:
Once an Idle state is detected, the user may want to place the USB module in Suspend mode.
Clearing this bit will cause the USTAT FIFO to advance (valid only for IN, OUT and SETUP tokens).
This bit is typically unmasked only following the detection of a UIDLE interrupt event.
Only error conditions enabled through the UEIE register will set this bit. This bit is a status bit only and
cannot be set or cleared by the user.
USB INTERRUPT STATUS
REGISTER (UIR)
Unimplemented: Read as ‘0’
SOFIF: Start-Of-Frame Token Interrupt bit
1 = A Start-Of-Frame token received by the SIE
0 = No Start-Of-Frame token received by the SIE
STALLIF: A STALL Handshake Interrupt bit
1 = A STALL handshake was sent by the SIE
0 = A STALL handshake has not been sent
IDLEIF: Idle Detect Interrupt bit
1 = Idle condition detected (constant Idle state of 3 ms or more)
0 = No Idle condition detected
TRNIF: Transaction Complete Interrupt bit
1 = Processing of pending transaction is complete; read USTAT register for endpoint information
0 = Processing of pending transaction is not complete or no transaction is pending
ACTVIF: Bus Activity Detect Interrupt bit
1 = Activity on the D+/D- lines was detected
0 = No activity detected on the D+/D- lines
UERRIF: USB Error Condition Interrupt bit
1 = An unmasked error condition has occurred
0 = No unmasked error condition has occurred.
URSTIF: USB Reset Interrupt bit
1 = Valid USB Reset occurred; 00h is loaded into UADDR register
0 = No USB Reset has occurred
SOFIF
R/W-0
UIR: USB INTERRUPT STATUS REGISTER (ACCESS F62h)
W = Writable bit
‘1’ = Bit is set
STALLIF
R/W-0
IDLEIF
(1)
R/W-0
(1)
(3)
(2)
(4)
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
PIC18F46J50 FAMILY
TRNIF
R/W-0
When the USB module is in the Low-Power Suspend
mode (UCON<1> = 1), the SIE does not get clocked.
When in this state, the SIE cannot process packets
and, therefore, cannot detect new interrupt conditions
other than the Activity Detect Interrupt, ACTVIF. The
ACTVIF bit is typically used by USB firmware to detect
when the microcontroller should bring the USB module
out of the Low-Power Suspend mode (UCON<1> = 0).
(2)
ACTVIF
R/W-0
(3)
x = Bit is unknown
UERRIF
R-0
DS39931C-page 367
(4)
URSTIF
R/W-0
bit 0
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