PIC16F1938-I/ML Microchip Technology, PIC16F1938-I/ML Datasheet - Page 310

• Manufacturer Part Number: PIC16F1938-I/ML
• Description: IC MCU 8BIT FLASH 28QFN
• Manufacturer: Microchip Technology
• Series: PIC® XLP™ 16Fr

Specifications of PIC16F1938-I/ML

• Core Size: 8-Bit
• Program Memory Size: 28KB (16K x 14)
• Oscillator Type: Internal
• Core Processor: PIC
• Speed: 32MHz
• Connectivity: I²C, LIN, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LCD, POR, PWM, WDT
• Number Of I /o: 25
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 11x10b
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 28-VQFN Exposed Pad, 28-HVQFN, 28-SQFN, 28-DHVQFN
• Controller Family/series: PIC16F
• No. Of I/o's: 25
• Eeprom Memory Size: 256Byte
• Ram Memory Size: 1024Byte
• Cpu Speed: 32MHz
• Package: 28QFN EP
• Device Core: PIC
• Family Name: PIC16
• Maximum Speed: 32 MHz
• Operating Supply Voltage: 2.5|3.3|5 V
• Data Bus Width: 8 Bit
• Number Of Programmable I/os: 25
• Interface Type: I2C/SPI/USART
• On-chip Adc: 11-chx10-bit
• Number Of Timers: 5
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

PIC16F193X/LF193X
22.6.4
To initiate a Start condition, the user sets the Start
Enable bit, SEN bit of the SSPCON2 register. If the
SDA and SCL pins are sampled high, the Baud Rate
Generator
SSPADD<7:0> and starts its count. If SCL and SDA
are both sampled high when the Baud Rate Generator
times out (T
of the SDA being driven low while SCL is high is the
Start condition and causes the S bit of the SSPSTAT1
register to be set. Following this, the Baud Rate Gen-
erator is reloaded with the contents of SSPADD<7:0>
and resumes its count. When the Baud Rate Genera-
tor times out (T
FIGURE 22-23:
DS41364C-page 310
I
CONDITION TIMING
2
C MASTER MODE START
BRG
is
BRG
), the SDA pin is driven low. The action
reloaded
), the SEN bit of the SSPCON2 reg-
FIRST START BIT TIMING
Write to SEN bit occurs here
with
SDA
SCL
the
contents
SDA = 1,
SCL = 1
T
BRG
Preliminary
of
S
Set S bit (SSPSTAT<3>)
T
BRG
At completion of Start bit,
hardware clears SEN bit
ister will be automatically cleared by hardware; the
Baud Rate Generator is suspended, leaving the SDA
line held low and the Start condition is complete.
and sets SSPIF bit
Note 1: If at the beginning of the Start condition,
T
Write to SSPBUF occurs here
BRG
2: The Philips I
1st bit
the SDA and SCL pins are already sam-
pled low, or if during the Start condition,
the SCL line is sampled low before the
SDA line is driven low, a bus collision
occurs, the Bus Collision Interrupt Flag,
BCLIF, is set, the Start condition is aborted
and the I
state.
bus collision cannot occur on a Start.
T
BRG
2
C module is reset into its Idle
© 2009 Microchip Technology Inc.
2
C Specification states that a
2nd bit