PIC18F4515-E/PT Microchip Technology, PIC18F4515-E/PT Datasheet - Page 184
![IC MCU FLASH 24KX16 44TQFP](/photos/6/82/68251/c04-076_pt_sml.jpg)
PIC18F4515-E/PT
Manufacturer Part Number
PIC18F4515-E/PT
Description
IC MCU FLASH 24KX16 44TQFP
Manufacturer
Microchip Technology
Series
PIC® 18Fr
Datasheets
1.PIC18F2221-ISO.pdf
(46 pages)
2.PIC18LF2410-ISO.pdf
(376 pages)
3.PIC18LF2410-ISO.pdf
(8 pages)
4.PIC18F2515-ISO.pdf
(16 pages)
5.PIC18F2515-ISO.pdf
(6 pages)
6.PIC18F2515-ISO.pdf
(8 pages)
Specifications of PIC18F4515-E/PT
Core Processor
PIC
Core Size
8-Bit
Speed
40MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, HLVD, POR, PWM, WDT
Number Of I /o
36
Program Memory Size
48KB (24K x 16)
Program Memory Type
FLASH
Ram Size
3.8K x 8
Voltage - Supply (vcc/vdd)
4.2 V ~ 5.5 V
Data Converters
A/D 13x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Package / Case
44-TQFP, 44-VQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC18F4515-E/PT
Manufacturer:
Microchip Technology
Quantity:
10 000
- PIC18F2221-ISO PDF datasheet
- PIC18LF2410-ISO PDF datasheet #2
- PIC18LF2410-ISO PDF datasheet #3
- PIC18F2515-ISO PDF datasheet #4
- PIC18F2515-ISO PDF datasheet #5
- PIC18F2515-ISO PDF datasheet #6
- Current page: 184 of 376
- Download datasheet (7Mb)
PIC18F2X1X/4X1X
16.4.12
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
are presented on the SDA pin. If the user wishes to gen-
erate an Acknowledge, then the ACKDT bit should be
cleared. If not, the user should set the ACKDT bit before
starting an Acknowledge sequence. The Baud Rate
Generator then counts for one rollover period (T
and the SCL pin is deasserted (pulled high). When the
SCL pin is sampled high (clock arbitration), the Baud
Rate Generator counts for T
pulled low. Following this, the ACKEN bit is automatically
cleared, the Baud Rate Generator is turned off and the
MSSP module then goes into Idle mode (Figure 16-23).
16.4.12.1
If the user writes the SSPBUF when an Acknowledge
sequence is in progress, then WCOL is set and the
contents of the buffer are unchanged (the write doesn’t
occur).
FIGURE 16-23:
FIGURE 16-24:
DS39636D-page 186
Note: T
Note: T
ACKNOWLEDGE SEQUENCE
TIMING
SCL
SDA
WCOL Status Flag
Sequence
Falling edge of
9th clock
SSPIF
Write to SSPCON2,
BRG
BRG
Acknowledge sequence starts here,
SDA
SCL
= one Baud Rate Generator period.
= one Baud Rate Generator period.
ACKNOWLEDGE SEQUENCE WAVEFORM
STOP CONDITION RECEIVE OR TRANSMIT MODE
ACK
set PEN
SSPIF set at
the end of receive
BRG
ACKEN = 1, ACKDT = 0
Enable
. The SCL pin is then
write to SSPCON2
T
T
BRG
BRG
SDA asserted low before rising edge of clock
to setup Stop condition
bit,
8
D0
ACKEN
T
SCL brought high after T
BRG
BRG
)
Cleared in
software
P
T
SCL = 1 for T
after SDA sampled high. P bit (SSPSTAT<4>) is set.
BRG
T
BRG
ACK
16.4.13
A Stop bit is asserted on the SDA pin at the end of a
receive/transmit by setting the Stop Sequence Enable
bit, PEN (SSPCON2<2>). At the end of a receive/
transmit, the SCL line is held low after the falling edge
of the ninth clock. When the PEN bit is set, the master
will assert the SDA line low. When the SDA line is sam-
pled low, the Baud Rate Generator is reloaded and
counts down to ‘0’. When the Baud Rate Generator
times out, the SCL pin will be brought high and one
T
SDA pin will be deasserted. When the SDA pin is sam-
pled high while SCL is high, the P bit (SSPSTAT<4>) is
set. A T
bit is set (Figure 16-24).
16.4.13.1
If the user writes the SSPBUF when a Stop sequence
is in progress, then the WCOL bit is set and the
contents of the buffer are unchanged (the write doesn’t
occur).
BRG
PEN bit (SSPCON2<2>) is cleared by
T
hardware and the SSPIF bit is set
BRG
9
BRG
BRG
(Baud Rate Generator rollover count) later, the
SSPIF set at the end
of Acknowledge sequence
BRG
, followed by SDA = 1 for T
STOP CONDITION TIMING
later, the PEN bit is cleared and the SSPIF
WCOL Status Flag
ACKEN automatically cleared
© 2009 Microchip Technology Inc.
Cleared in
software
BRG
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