PIC16LF1936-E/SO Microchip Technology, PIC16LF1936-E/SO Datasheet - Page 260
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PIC16LF1936-E/SO
Manufacturer Part Number
PIC16LF1936-E/SO
Description
14KB Flash, 512B RAM, 256B EEPROM, LCD, NanoWatt XLP 28 SOIC .300in TUBE
Manufacturer
Microchip Technology
Series
PIC® XLP™ 16Fr
Specifications of PIC16LF1936-E/SO
Core Processor
PIC
Core Size
8-Bit
Speed
32MHz
Connectivity
I²C, LIN, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, LCD, POR, PWM, WDT
Number Of I /o
25
Program Memory Size
14KB (8K x 14)
Program Memory Type
FLASH
Eeprom Size
256 x 8
Ram Size
512 x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 3.6 V
Data Converters
A/D 11x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Package / Case
28-SOIC (7.5mm Width)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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PIC16F193X/LF193X
23.5.3.3
Setting the AHEN bit of the SSPCON3 register
enables additional clock stretching and interrupt
generation after the 8th falling edge of a received
matching address. Once a matching address has
been clocked in, CKP is cleared and the SSPIF
interrupt is set.
Figure 23-18 displays a standard waveform of a 7-bit
Address Slave Transmission with AHEN enabled.
1.
2.
3.
4.
5.
6.
7.
8.
9.
10. Slave hardware automatically clears the CKP bit
11. Slave software clears SSPIF.
12. Slave loads value to transmit to the master into
13. Slave sets CKP bit releasing the clock.
14. Master clocks out the data from the slave and
15. Slave hardware copies the ACK value into the
16. Steps 10-15 are repeated for each byte transmit-
17. If the master sends a not ACK the slave
DS41364D-page 260
Note: SSPBUF cannot be loaded until after the
Note: Master must send a not ACK on the last byte
Bus starts Idle.
Master sends Start condition; the S bit of
SSPSTAT is set; SSPIF is set if interrupt on Start
detect is enabled.
Master sends matching address with R/W bit
set. After the 8th falling edge of the SCL line the
CKP bit is cleared and SSPIF interrupt is gener-
ated.
Slave software clears SSPIF.
Slave software reads ACKTIM bit of SSPCON3
register, and R/W and D/A of the SSPSTAT reg-
ister to determine the source of the interrupt.
Slave reads the address value from the
SSPBUF register clearing the BF bit.
Slave software decides from this information if it
wishes to ACK or not ACK and sets ACKDT bit
of the SSPCON2 register accordingly.
Slave sets the CKP bit releasing SCL.
Master clocks in the ACK value from the slave.
and sets SSPIF after the ACK if the R/W bit is
set.
SSPBUF setting the BF bit.
sends an ACK value on the 9th SCL pulse.
ACKSTAT bit of the SSPCON2 register.
ted to the master from the slave.
releases the bus allowing the master to send a
Stop and end the communication.
ACK.
to ensure that the slave releases the SCL
line to receive a Stop.
7-bit Transmission with Address
Hold Enabled
Preliminary
2009 Microchip Technology Inc.
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