PIC16LF1847-E/ML Microchip Technology, PIC16LF1847-E/ML Datasheet - Page 264
![14 KB Flash, 1K Bytes RAM, 32 MHz Int. Osc, 16 I/0, Enhanced Mid Range Core, Nan](/photos/40/79/407995/pdip18_sml.jpg)
PIC16LF1847-E/ML
Manufacturer Part Number
PIC16LF1847-E/ML
Description
14 KB Flash, 1K Bytes RAM, 32 MHz Int. Osc, 16 I/0, Enhanced Mid Range Core, Nan
Manufacturer
Microchip Technology
Series
PIC® XLP™ mTouch™ 16Fr
Datasheet
1.PIC16F1847-EP.pdf
(408 pages)
Specifications of PIC16LF1847-E/ML
Core Processor
PIC
Core Size
8-Bit
Speed
32MHz
Connectivity
I²C, LIN, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
15
Program Memory Size
14KB (8K x 14)
Program Memory Type
FLASH
Eeprom Size
256 x 8
Ram Size
1K x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 3.6 V
Data Converters
A/D 12x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Package / Case
28-VQFN Exposed Pad
Core
PIC
Processor Series
PIC16LF
Data Bus Width
8 bit
Maximum Clock Frequency
32 MHz
Data Ram Size
256 B
Number Of Programmable I/os
15
Number Of Timers
ÿ4 x 8-bit, 1 x 16-bit
Operating Supply Voltage
1.8 V to 5.5 V
Mounting Style
Through Hole
Interface Type
SPI, I2C
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
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PIC16(L)F1847
25.6
Master mode is enabled by setting and clearing the
appropriate SSPM bits in the SSPxCON1 register and
by setting the SSPEN bit. In Master mode, the SCLx
and SDAx lines are set as inputs and are manipulated
by the MSSPx hardware.
Master mode of operation is supported by interrupt
generation on the detection of the Start and Stop con-
ditions. The Stop (P) and Start (S) bits are cleared from
a Reset or when the MSSPx module is disabled. Con-
trol of the I
or the bus is Idle.
In Firmware Controlled Master mode, user code
conducts all I
Stop bit condition detection. Start and Stop condition
detection is the only active circuitry in this mode. All
other communication is done by the user software
directly manipulating the SDAx and SCLx lines.
The following events will cause the SSPx Interrupt Flag
bit, SSPxIF, to be set (SSPx interrupt, if enabled):
• Start condition detected
• Stop condition detected
• Data transfer byte transmitted/received
• Acknowledge transmitted/received
• Repeated Start generated
DS41453B-page 264
Note 1: The MSSPx module, when configured in
I
2: When in Master mode, Start/Stop detec-
2
C Master Mode
2
C bus may be taken when the P bit is set,
I
ing of events. For instance, the user is not
allowed to initiate a Start condition and
immediately write the SSPxBUF register
to initiate transmission before the Start
condition is complete. In this case, the
SSPxBUF will not be written to and the
WCOL bit will be set, indicating that a
write to the SSPxBUF did not occur
tion is masked and an interrupt is gener-
ated when the SEN/PEN bit is cleared and
the generation is complete.
2
C Master mode, does not allow queue-
2
C bus operations based on Start and
Preliminary
25.6.1 I
The master device generates all of the serial clock
pulses and the Start and Stop conditions. A transfer is
ended with a Stop condition or with a Repeated Start
condition. Since the Repeated Start condition is also
the beginning of the next serial transfer, the I
not be released.
In Master Transmitter mode, serial data is output
through SDAx, while SCLx outputs the serial clock. The
first byte transmitted contains the slave address of the
receiving device (7 bits) and the Read/Write (R/W) bit.
In this case, the R/W bit will be logic ‘0’. Serial data is
transmitted 8 bits at a time. After each byte is transmit-
ted, an Acknowledge bit is received. Start and Stop
conditions are output to indicate the beginning and the
end of a serial transfer.
In Master Receive mode, the first byte transmitted con-
tains the slave address of the transmitting device
(7 bits) and the R/W bit. In this case, the R/W bit will be
logic ‘1’. Thus, the first byte transmitted is a 7-bit slave
address followed by a ‘1’ to indicate the receive bit.
Serial data is received via SDAx, while SCLx outputs
the serial clock. Serial data is received 8 bits at a time.
After each byte is received, an Acknowledge bit is
transmitted. Start and Stop conditions indicate the
beginning and end of transmission.
A Baud Rate Generator is used to set the clock fre-
quency output on SCLx. See
Rate Generator”
2
C MASTER MODE OPERATION
for more detail.
2011 Microchip Technology Inc.
Section 25.7 “Baud
2
C bus will
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