PIC18LF44J50-I/PT Microchip Technology, PIC18LF44J50-I/PT Datasheet - Page 279
![IC PIC MCU FLASH 16K 2V 44-TQFP](/photos/6/82/68251/c04-076_pt_sml.jpg)
PIC18LF44J50-I/PT
Manufacturer Part Number
PIC18LF44J50-I/PT
Description
IC PIC MCU FLASH 16K 2V 44-TQFP
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/PT
Program Memory Type
FLASH
Program Memory Size
16KB (8K x 16)
Package / Case
44-TQFP, 44-VQFP
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
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC18LF44J50-I/PT
Manufacturer:
Microchip Technology
Quantity:
10 000
- Current page: 279 of 554
- Download datasheet (9Mb)
18.4.6
The following steps would typically be taken to enable
and use the SPI DMA module:
1.
2.
3.
© 2009 Microchip Technology Inc.
Configure the I/O pins, which will be used by
MSSP2.
a)
b)
c)
d)
Configure and enable MSSP2 for the desired
SPI operating mode.
a)
b)
Configure the SPI DMA engine.
a)
b)
c)
d)
e)
Assign SCK2, SDO2, SDI2 and SS2 to RPn
pins as appropriate for the SPI mode which
will be used. Only functions which will be
used need to be assigned to a pin.
Initialize the associated LATx registers for
the desired Idle SPI bus state.
If Open-Drain Output mode on SDO2 and
SCK2 (Master mode) is desired, set
ODCON3<1>.
Configure corresponding TRISx bits for
each I/O pin used.
Select the desired operating mode (Master
or Slave, SPI Mode 0, 1, 2 and 3) and con-
figure the module by writing to the
SSP2STAT and SSP2CON1 registers.
Enable MSSP2 by setting SSP2CON1<5> = 1.
Select the desired operating mode by
writing
DMACON2 and DMACON1.
Initialize the TXADDRH/TXADDRL Pointer
(Full-Duplex or Half-Duplex Transmit Only
mode).
Initialize the RXADDRH/RXADDRL Pointer
(Full-Duplex or Half-Duplex Receive Only
mode).
Initialize the DMABCH/DMABCL Byte Count
register with the number of bytes to be
transferred in the next SPI DMA operation.
Set the DMAEN bit (DMACON1<0>).
In SPI Master modes, this will initiate a DMA
transaction. In SPI Slave modes, this will
complete the initialization process, and the
module will now be ready to begin receiving
and/or transmitting data to the master
device
transaction.
USING THE SPI DMA MODULE
once
the
appropriate
the
master
values
starts
the
to
PIC18F46J50 FAMILY
4.
Example 18-2 provides example code demonstrating
the initialization process and the steps needed to use
the SPI DMA module to perform a 512-byte
Full-Duplex, Master mode transfer.
Detect the SSP2IF interrupt condition (PIR3<7).
a)
b)
If the interrupt was configured to occur at
the completion of the SPI DMA transaction,
the DMAEN bit (DMACON1<0>) will be
clear. User firmware may prepare the
module for another transaction by repeating
steps 3.b through 3.e.
If the interrupt was configured to occur prior
to the completion of the SPI DMA trans-
action, the DMAEN bit may still be set,
indicating the transaction is still in progress.
User firmware would typically use this inter-
rupt condition to begin preparing new data
for the next DMA transaction. Firmware
should not repeat steps 3.b. through 3.e.
until the DMAEN bit is cleared by the
hardware, indicating the transaction is
complete.
DS39931C-page 279
Related parts for PIC18LF44J50-I/PT
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
![TC1014-2.7VCT](/images/manufacturer_photos/0/4/440/microchip_technology_inc__tmb.jpg)
Part Number:
Description:
Manufacturer:
Microchip Technology Inc.
Datasheet:
![TC1014-5.0VCT](/images/manufacturer_photos/0/4/440/microchip_technology_inc__tmb.jpg)
Part Number:
Description:
Manufacturer:
Microchip Technology Inc.
Datasheet:
![TC1055-2.5VCT](/images/manufacturer_photos/0/4/440/microchip_technology_inc__tmb.jpg)
Part Number:
Description:
Manufacturer:
Microchip Technology Inc.
Datasheet:
![TC1055-2.7VCT](/images/manufacturer_photos/0/4/440/microchip_technology_inc__tmb.jpg)
Part Number:
Description:
Manufacturer:
Microchip Technology Inc.
Datasheet:
![TC1055-2.8VCT](/images/manufacturer_photos/0/4/440/microchip_technology_inc__tmb.jpg)
Part Number:
Description:
Manufacturer:
Microchip Technology Inc.
Datasheet:
![TC1055-4.0VCT](/images/manufacturer_photos/0/4/440/microchip_technology_inc__tmb.jpg)
Part Number:
Description:
Manufacturer:
Microchip Technology Inc.
Datasheet:
![TC1186-2.5VCT](/images/manufacturer_photos/0/4/440/microchip_technology_inc__tmb.jpg)
Part Number:
Description:
Manufacturer:
Microchip Technology Inc.
Datasheet:
![TC1186-2.85VCT](/images/manufacturer_photos/0/4/440/microchip_technology_inc__tmb.jpg)
Part Number:
Description:
Manufacturer:
Microchip Technology Inc.
Datasheet: