PIC18F2520-I/ML Microchip Technology, PIC18F2520-I/ML Datasheet - Page 219
PIC18F2520-I/ML
Manufacturer Part Number
PIC18F2520-I/ML
Description
IC PIC MCU FLASH 16KX16 28QFN
Manufacturer
Microchip Technology
Series
PIC® 18Fr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.PIC18F2221-ISO.pdf
(46 pages)
3.PIC18F2420-IML.pdf
(412 pages)
4.PIC18F2420-IML.pdf
(16 pages)
5.PIC18F2420-IML.pdf
(8 pages)
6.PIC18F2420-IML.pdf
(6 pages)
7.PIC18F2420-IML.pdf
(8 pages)
8.PIC18F2420-IML.pdf
(4 pages)
9.PIC18F4420-IP.pdf
(390 pages)
Specifications of PIC18F2520-I/ML
Program Memory Type
FLASH
Program Memory Size
32KB (16K x 16)
Package / Case
28-VQFN Exposed Pad, 28-HVQFN, 28-SQFN, 28-DHVQFN
Core Processor
PIC
Core Size
8-Bit
Speed
40MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, HLVD, POR, PWM, WDT
Number Of I /o
25
Eeprom Size
256 x 8
Ram Size
1.5K x 8
Voltage - Supply (vcc/vdd)
4.2 V ~ 5.5 V
Data Converters
A/D 10x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Processor Series
PIC18F
Core
PIC
Data Bus Width
8 bit
Data Ram Size
1.5 KB
Interface Type
EUSART/I2C/MSSP/SPI
Maximum Clock Frequency
40 MHz
Number Of Programmable I/os
25
Number Of Timers
4
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, DM163022, DV164136
Minimum Operating Temperature
- 40 C
On-chip Adc
10-ch x 10-bit
Package
28QFN EP
Device Core
PIC
Family Name
PIC18
Maximum Speed
40 MHz
Data Rom Size
256 KB
Height
0.88 mm
Length
6 mm
Supply Voltage (max)
5.5 V
Supply Voltage (min)
4.2 V
Width
6 mm
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
MCP3909RD-3PH1 - REF DESIGN MCP3909 3PH ENGY MTRXLT28QFN4 - SOCKET TRANS ICE 28QFN W/CABLEAC164322 - MODULE SOCKET MPLAB PM3 28/44QFN
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
PIC18F2520-I/ML
Manufacturer:
MICROCHI
Quantity:
20 000
- PIC16F616T-ISL PDF datasheet
- PIC18F2221-ISO PDF datasheet #2
- PIC18F2420-IML PDF datasheet #3
- PIC18F2420-IML PDF datasheet #4
- PIC18F2420-IML PDF datasheet #5
- PIC18F2420-IML PDF datasheet #6
- PIC18F2420-IML PDF datasheet #7
- PIC18F2420-IML PDF datasheet #8
- PIC18F4420-IP PDF datasheet #9
- Current page: 219 of 390
- Download datasheet (8Mb)
18.3
The Synchronous Master mode is entered by setting
the CSRC bit (TXSTA<7>). In this mode, the data is
transmitted in a half-duplex manner (i.e., transmission
and reception do not occur at the same time). When
transmitting data, the reception is inhibited and vice
versa. Synchronous mode is entered by setting bit
SYNC (TXSTA<4>). In addition, enable bit SPEN
(RCSTA<7>) is set in order to configure the TX and RX
pins to CK (clock) and DT (data) lines, respectively.
The Master mode indicates that the processor trans-
mits the master clock on the CK line. Clock polarity is
selected with the SCKP bit (BAUDCON<4>); setting
SCKP sets the Idle state on CK as high, while clearing
the bit sets the Idle state as low. This option is provided
to support Microwire devices with this module.
18.3.1
The EUSART transmitter block diagram is shown in
Figure 18-3. The heart of the transmitter is the Transmit
(Serial) Shift Register (TSR). The Shift register obtains
its data from the Read/Write Transmit Buffer register,
TXREG. The TXREG register is loaded with data in
software. The TSR register is not loaded until the last
bit has been transmitted from the previous load. As
soon as the last bit is transmitted, the TSR is loaded
with new data from the TXREG (if available).
FIGURE 18-11:
2004 Microchip Technology Inc.
RC7/RX/DT
RC6/TX/CK pin
(SCKP = 0)
RC6/TX/CK pin
(SCKP = 1)
Write to
TXREG Reg
TXIF bit
(Interrupt Flag)
TRMT bit
TXEN bit
Note: Sync Master mode, SPBRG = 0, continuous transmission of two 8-bit words.
EUSART Synchronous
Master Mode
EUSART SYNCHRONOUS MASTER
TRANSMISSION
Q1 Q2 Q3Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1Q2 Q3 Q4 Q1 Q2 Q3 Q4
‘1’
Write Word 1
SYNCHRONOUS TRANSMISSION
bit 0
Write Word 2
bit 1
Word 1
PIC18F2420/2520/4420/4520
bit 2
Preliminary
Q3 Q4 Q1 Q2 Q3 Q4 Q1Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4
Once the TXREG register transfers the data to the TSR
register (occurs in one T
the TXIF flag bit (PIR1<4>) is set. The interrupt can be
enabled or disabled by setting or clearing the interrupt
enable bit, TXIE (PIE1<4>). TXIF is set regardless of
the state of enable bit TXIE; it cannot be cleared in
software. It will reset only when new data is loaded into
the TXREG register.
While flag bit TXIF indicates the status of the TXREG
register, another bit, TRMT (TXSTA<1>), shows the
status of the TSR register. TRMT is a read-only bit which
is set when the TSR is empty. No interrupt logic is tied to
this bit so the user has to poll this bit in order to deter-
mine if the TSR register is empty. The TSR is not
mapped in data memory so it is not available to the user.
To set up a Synchronous Master Transmission:
1.
2.
3.
4.
5.
6.
7.
8.
bit 7
Initialize the SPBRGH:SPBRG registers for the
appropriate baud rate. Set or clear the BRG16
bit, as required, to achieve the desired baud rate.
Enable the synchronous master serial port by
setting bits SYNC, SPEN and CSRC.
If interrupts are desired, set enable bit TXIE.
If 9-bit transmission is desired, set bit TX9.
Enable the transmission by setting bit TXEN.
If 9-bit transmission is selected, the ninth bit
should be loaded in bit TX9D.
Start transmission by loading data to the TXREG
register.
If using interrupts, ensure that the GIE and PEIE
bits in the INTCON register (INTCON<7:6>) are
set.
bit 0
Word 2
bit 1
CY
), the TXREG is empty and
DS39631A-page 217
bit 7
‘1’
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