PIC16LC771-E/P Microchip Technology, PIC16LC771-E/P Datasheet - Page 93
![IC MCU OTP 4KX14 A/D PWM 20DIP](/photos/12/13/121303/150-20-dip_sml.jpg)
PIC16LC771-E/P
Manufacturer Part Number
PIC16LC771-E/P
Description
IC MCU OTP 4KX14 A/D PWM 20DIP
Manufacturer
Microchip Technology
Series
PIC® 16Cr
Specifications of PIC16LC771-E/P
Core Processor
PIC
Core Size
8-Bit
Speed
20MHz
Connectivity
I²C, SPI
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
15
Program Memory Size
7KB (4K x 14)
Program Memory Type
OTP
Ram Size
256 x 8
Voltage - Supply (vcc/vdd)
2.5 V ~ 5.5 V
Data Converters
A/D 6x12b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Package / Case
20-DIP (0.300", 7.62mm)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Other names
PIC16LC771E/P
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9.2.14
An Acknowledge sequence is enabled by setting the
Acknowledge
(SSPCON2<4>). When this bit is set, the SCL pin is
pulled low and the contents of the Acknowledge data bit
ACKDT (SSPCON2<5>) is presented on the SDA pin.
If the user wishes to generate an Acknowledge (ACK),
then the ACKDT bit should be cleared. Otherwise, the
user should set the ACKDT bit (NACK) before starting
an Acknowledge sequence. The baud rate generator is
then loaded from SSPADD<6:0> and counts for one
rollover period (T
(pulled high). When the SCL pin is sampled high (clock
FIGURE 9-20:
2002 Microchip Technology Inc.
ACKNOWLEDGE SEQUENCE
TIMING
SSPIF
Note: T
sequence
BRG
SDA
Acknowledge sequence starts here,
SCL
). The SCL pin is then de-asserted
ACKNOWLEDGE SEQUENCE WAVEFORM
SSPIF occurs at the
end of receive
BRG
= one baud rate generator period.
ACKEN = 1, ACKDT = 0
enable
Write to SSPCON2
bit,
8
D0
Advance Information
ACKEN
Cleared in
software
T
BRG
ACK
arbitration), the baud rate generator is reloaded and
counts for another T
period, the following events occur (see Figure 9-20):
• The SCL pin is pulled low.
• The ACKEN bit is automatically cleared.
• The baud rate generator is turned off.
• The MSSP module goes into IDLE mode.
9.2.14.1
If the user writes the SSPBUF when an Acknowledge
sequence is in progress, the WCOL is set and the con-
tents of the buffer are unchanged (the write doesn’t
occur).
T
BRG
9
PIC16C717/770/771
SSPIF occurs at the end
of Acknowledge sequence
WCOL STATUS FLAG
ACKEN automatically cleared
BRG
Cleared in
software
. At the completion of the T
DS41120B-page 91
BRG
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