PIC16LF767-I/SS Microchip Technology, PIC16LF767-I/SS Datasheet - Page 109
![IC PIC MCU FLASH 8KX14 28SSOP](/photos/6/81/68119/150-28-ssop_sml.jpg)
PIC16LF767-I/SS
Manufacturer Part Number
PIC16LF767-I/SS
Description
IC PIC MCU FLASH 8KX14 28SSOP
Manufacturer
Microchip Technology
Series
PIC® 16Fr
Specifications of PIC16LF767-I/SS
Core Processor
PIC
Core Size
8-Bit
Speed
10MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
25
Program Memory Size
14KB (8K x 14)
Program Memory Type
FLASH
Ram Size
368 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
28-SSOP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
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In 10-bit Address mode, two address bytes need to be
received by the slave. The five Most Significant bits
(MSbs) of the first address byte specify if this is a 10-bit
address. Bit R/W (SSPSTAT<2>) must specify a write
so the slave device will receive the second address
byte. For a 10-bit address, the first byte would equal
‘11110 A9 A8 0’, where ‘A9’ and ‘A8’ are the two
MSbs of the address. The sequence of events for
10-bit address is as follows, with steps 7 through 9 for
the slave-transmitter:
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.4.3.2
When the R/W bit of the address byte is clear and an
address match occurs, the R/W bit of the SSPSTAT
register is cleared. The received address is loaded into
the SSPBUF register and the SDA line is held low
(ACK).
When the address byte overflow condition exists, then
the no Acknowledge (ACK) pulse is given. An overflow
condition is defined as either bit BF (SSPSTAT<0>) is
set or bit SSPOV (SSPCON<6>) is set.
2004 Microchip Technology Inc.
Receive first (high) byte of address (bits SSPIF,
BF and UA (SSPSTAT<1>) are set).
Update the SSPADD register with second (low)
byte of address (clears bit UA and releases the
SCL line).
Read the SSPBUF register (clears bit BF) and
clear flag bit SSPIF.
Receive second (low) byte of address (bits
SSPIF, BF and UA are set).
Update the SSPADD register with the first (high)
byte of address. If match releases SCL line, this
will clear bit UA.
Read the SSPBUF register (clears bit BF) and
clear flag bit SSPIF.
Receive Repeated Start condition.
Receive first (high) byte of address (bits SSPIF
and BF are set).
Read the SSPBUF register (clears bit BF) and
clear flag bit SSPIF.
Reception
An MSSP interrupt is generated for each data transfer
byte. Flag bit, SSPIF (PIR1<3>), must be cleared in
software. The SSPSTAT register is used to determine
the status of the byte.
If SEN is enabled (SSPCON<0> = 1), RC3/SCK/SCL
will be held low (clock stretch) following each data
transfer. The clock must be released by setting bit,
CKP (SSPCON<4>). See Section 10.4.4 “Clock
Stretching” for more detail.
10.4.3.3
When the R/W bit of the incoming address byte is set
and an address match occurs, the R/W bit of the
SSPSTAT register is set. The received address is loaded
into the SSPBUF register. The ACK pulse will be sent on
the ninth bit and pin RC3/SCK/SCL is held low regard-
less of SEN (see Section 10.4.4 “Clock Stretching”
for more detail). By stretching the clock, the master will
be unable to assert another clock pulse until the slave is
done preparing the transmit data. The transmit data
must be loaded into the SSPBUF register, which also
loads the SSPSR register. Then pin RC3/SCK/SCL
should be enabled by setting bit CKP (SSPCON<4>).
The eight data bits are shifted out on the falling edge of
the SCL input. This ensures that the SDA signal is valid
during the SCL high time (Figure 10-9).
The ACK pulse from the master-receiver is latched on
the rising edge of the ninth SCL input pulse. If the SDA
line is high (not ACK), then the data transfer is com-
plete. In this case, when the ACK is latched by the
slave, the slave logic is reset (resets SSPSTAT regis-
ter) and the slave monitors for another occurrence of
the Start bit. If the SDA line was low (ACK), the next
transmit data must be loaded into the SSPBUF register.
Again, pin RC3/SCK/SCL must be enabled by setting
bit CKP.
An MSSP interrupt is generated for each data transfer
byte. The SSPIF bit must be cleared in software and
the SSPSTAT register is used to determine the status
of the byte. The SSPIF bit is set on the falling edge of
the ninth clock pulse.
Transmission
PIC16F7X7
DS30498C-page 107
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