PIC18F44J50-I/ML Microchip Technology, PIC18F44J50-I/ML Datasheet - Page 357
![IC PIC MCU FLASH 16K 2V 44-QFN](/photos/6/81/68122/150-44-qfn_sml.jpg)
PIC18F44J50-I/ML
Manufacturer Part Number
PIC18F44J50-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)
4.PIC18F24J50-ISS.pdf
(18 pages)
5.PIC18F26J11-ISO.pdf
(28 pages)
Specifications of PIC18F44J50-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)
2.15 V ~ 3.6 V
Data Converters
A/D 13x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Processor Series
PIC18F
Core
PIC
Data Bus Width
8 bit
Data Ram Size
3776 B
Interface Type
EUSART, I2C, SPI
Maximum Clock Frequency
48 MHz
Number Of Timers
5
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
For Use With
AC164322 - MODULE SOCKET MPLAB PM3 28/44QFN
Eeprom Size
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
- PIC18LF24J10-ISS PDF datasheet
- PIC18LF24J50-ISS PDF datasheet #2
- PIC18LF24J50-ISS PDF datasheet #3
- PIC18F24J50-ISS PDF datasheet #4
- PIC18F26J11-ISO PDF datasheet #5
- Current page: 357 of 554
- Download datasheet (9Mb)
21.2.3
The USB Status register reports the transaction status
within the SIE. When the SIE issues a USB transfer
complete interrupt, USTAT should be read to determine
the status of the transfer. USTAT contains the transfer
endpoint number, direction and Ping-Pong Buffer
Pointer value (if used).
The USTAT register is actually a read window into a
four-byte status FIFO, maintained by the SIE. It allows
the microcontroller to process one transfer while the
SIE processes additional endpoints (Figure 21-3).
When the SIE completes using a buffer for reading or
writing data, it updates the USTAT register. If another
USB transfer is performed before a transaction
complete interrupt is serviced, the SIE will store the
status of the next transfer into the status FIFO.
REGISTER 21-3:
© 2009 Microchip Technology Inc.
bit 7
Legend:
R = Readable bit
-n = Value at POR
bit 7
bit 6-3
bit 2
bit 1
bit 0
Note 1:
Note:
U-0
—
USB STATUS REGISTER (USTAT)
This bit is only valid for endpoints with available Even and Odd BD registers.
The data in the USB Status register is valid
only when the TRNIF interrupt flag is
asserted.
Unimplemented: Read as ‘0’
ENDP<3:0>: Encoded Number of Last Endpoint Activity bits
(represents the number of the BDT updated by the last USB transfer)
1111 = Endpoint 15
1110 = Endpoint 14
.
.
.
0001 = Endpoint 1
0000 = Endpoint 0
DIR: Last BD Direction Indicator bit
1 = The last transaction was an IN token
0 = The last transaction was an OUT or SETUP token
PPBI: Ping-Pong BD Pointer Indicator bit
1 = The last transaction was to the Odd BD bank
0 = The last transaction was to the Even BD bank
Unimplemented: Read as ‘0’
ENDP3
R-x
USTAT: USB STATUS REGISTER (ACCESS F64h)
W = Writable bit
‘1’ = Bit is set
ENDP2
R-x
ENDP1
R-x
(1)
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
PIC18F46J50 FAMILY
ENDP0
Clearing the transfer complete flag bit, TRNIF, causes
the SIE to advance the FIFO. If the next data in the
FIFO holding register is valid, the SIE will reassert the
interrupt within 5 T
data is present, TRNIF will remain clear; USTAT data
will no longer be reliable.
FIGURE 21-3:
R-x
Note:
4-Byte FIFO
for USTAT
Data Bus
automatically issue a NAK back to the host.
If an endpoint request is received while the
USTAT
DIR
R-x
CY
USTAT from SIE
of clearing TRNIF. If no additional
FIFO
USTAT FIFO
x = Bit is unknown
is
PPBI
R-x
full,
(1)
DS39931C-page 357
Clearing TRNIF
Advances FIFO
the
SIE
U-0
—
bit 0
will
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