PIC18LF4685-I/P Microchip Technology, PIC18LF4685-I/P Datasheet - Page 192
![IC PIC MCU FLASH 48KX16 40DIP](/photos/6/61/66192/150-40-dip_sml.jpg)
PIC18LF4685-I/P
Manufacturer Part Number
PIC18LF4685-I/P
Description
IC PIC MCU FLASH 48KX16 40DIP
Manufacturer
Microchip Technology
Series
PIC® 18Fr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.PCM18XT0.pdf
(484 pages)
3.PIC18F2221-ISO.pdf
(46 pages)
4.PIC18F2682-ISP.pdf
(6 pages)
5.PIC18F2682-ISP.pdf
(4 pages)
Specifications of PIC18LF4685-I/P
Core Size
8-Bit
Program Memory Size
96KB (48K x 16)
Core Processor
PIC
Speed
40MHz
Connectivity
CAN, I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, HLVD, POR, PWM, WDT
Number Of I /o
36
Program Memory Type
FLASH
Eeprom Size
1K x 8
Ram Size
3.25K x 8
Voltage - Supply (vcc/vdd)
2 V ~ 5.5 V
Data Converters
A/D 11x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
40-DIP (0.600", 15.24mm)
Controller Family/series
PIC18
No. Of I/o's
36
Eeprom Memory Size
1024Byte
Ram Memory Size
3.25KB
Cpu Speed
40MHz
No. Of Timers
4
Package
40PDIP
Device Core
PIC
Family Name
PIC18
Maximum Speed
40 MHz
Operating Supply Voltage
2.5|3.3|5 V
Data Bus Width
8 Bit
Number Of Programmable I/os
44
Interface Type
CAN/I2C/SPI/USART
On-chip Adc
11-chx10-bit
Number Of Timers
4
Core
PIC
Processor Series
PIC18LF
Maximum Clock Frequency
40 MHz
Data Ram Size
3.25 KB
Mounting Style
Through Hole
A/d Bit Size
10 bit
A/d Channels Available
11
Height
4.95 mm
Length
53.21 mm
Maximum Operating Temperature
+ 85 C
Minimum Operating Temperature
- 40 C
Supply Voltage (max)
5.5 V
Supply Voltage (min)
2 V
Width
14.73 mm
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC18LF4685-I/PT
Manufacturer:
Microchip Technology
Quantity:
10 000
Part Number:
PIC18LF4685-I/PT
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
- PIC16F616T-ISL PDF datasheet
- PCM18XT0 PDF datasheet #2
- PIC18F2221-ISO PDF datasheet #3
- PIC18F2682-ISP PDF datasheet #4
- PIC18F2682-ISP PDF datasheet #5
- Current page: 192 of 484
- Download datasheet (9Mb)
PIC18F2682/2685/4682/4685
17.3.2
When initializing the SPI, several options need to be
specified. This is done by programming the appropriate
control bits (SSPCON1<5:0> and SSPSTAT<7:6>).
These control bits allow the following to be specified:
• Master mode (SCK is the clock output)
• Slave mode (SCK is the clock input)
• Clock Polarity (Idle state of SCK)
• Data Input Sample Phase (middle or end of data
• Clock Edge (output data on rising/falling edge of
• Clock Rate (Master mode only)
• Slave Select mode (Slave mode only)
The MSSP module consists of a transmit/receive shift
register (SSPSR) and a buffer register (SSPBUF). The
SSPSR shifts the data in and out of the device, MSb
first. The SSPBUF holds the data that was written to the
SSPSR until the received data is ready. Once the 8 bits
of data have been received, that byte is moved to the
SSPBUF register. Then, the Buffer Full detect bit, BF
(SSPSTAT<0>) and the interrupt flag bit, SSPIF, are
set. This double-buffering of the received data
(SSPBUF) allows the next byte to start reception before
EXAMPLE 17-1:
DS39761C-page 192
LOOP
output time)
SCK)
BTFSS
BRA
MOVF
MOVWF
MOVF
MOVWF
OPERATION
SSPSTAT, BF
LOOP
SSPBUF, W
RXDATA
TXDATA, W
SSPBUF
LOADING THE SSPBUF (SSPSR) REGISTER
;Has data been received (transmit complete)?
;No
;WREG reg = contents of SSPBUF
;Save in user RAM, if data is meaningful
;W reg = contents of TXDATA
;New data to xmit
reading the data that was just received. Any write to the
SSPBUF register during transmission/reception of data
will be ignored and the write collision detect bit, WCOL
(SSPCON1<7>), will be set. User software must clear
the WCOL bit so that it can be determined if the follow-
ing write(s) to the SSPBUF register completed
successfully.
When the application software is expecting to receive
valid data, the SSPBUF should be read before the next
byte of data to transfer is written to the SSPBUF. The
Buffer Full bit, BF (SSPSTAT<0>), indicates when
SSPBUF has been loaded with the received data
(transmission is complete). When the SSPBUF is read,
the BF bit is cleared. This data may be irrelevant if the
SPI is only a transmitter. Generally, the MSSP interrupt
is used to determine when the transmission/reception
has completed. The SSPBUF must be read and/or
written. If the interrupt method is not going to be used,
then software polling can be done to ensure that a write
collision does not occur. Example 17-1 shows the
loading of the SSPBUF (SSPSR) for data transmission.
The SSPSR is not directly readable or writable and can
only be accessed by addressing the SSPBUF register.
Additionally, the MSSP Status register (SSPSTAT)
indicates the various status conditions.
© 2009 Microchip Technology Inc.
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