PIC18F4320-E/PT Microchip Technology, PIC18F4320-E/PT Datasheet - Page 186
PIC18F4320-E/PT
Manufacturer Part Number
PIC18F4320-E/PT
Description
IC,MICROCONTROLLER,8-BIT,PIC CPU,CMOS,TQFP,44PIN,PLASTIC
Manufacturer
Microchip Technology
Series
PIC® 18Fr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.PIC16C770-ISO.pdf
(8 pages)
3.PIC18F1320-ISS.pdf
(36 pages)
4.PIC18F2220-ISO.pdf
(394 pages)
5.PIC18F2220-ISO.pdf
(6 pages)
6.PIC18F2220-ISO.pdf
(6 pages)
7.PIC18F2220-ISO.pdf
(8 pages)
8.PIC18F2220-ISO.pdf
(6 pages)
9.PIC18F2220-ISO.pdf
(6 pages)
Specifications of PIC18F4320-E/PT
Rohs Compliant
YES
Core Processor
PIC
Core Size
8-Bit
Speed
40MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, LVD, POR, PWM, WDT
Number Of I /o
36
Program Memory Size
8KB (4K x 16)
Program Memory Type
FLASH
Eeprom Size
256 x 8
Ram Size
512 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
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC18F4320-E/PT
Manufacturer:
Microchip Technology
Quantity:
10 000
- PIC16F616T-ISL PDF datasheet
- PIC16C770-ISO PDF datasheet #2
- PIC18F1320-ISS PDF datasheet #3
- PIC18F2220-ISO PDF datasheet #4
- PIC18F2220-ISO PDF datasheet #5
- PIC18F2220-ISO PDF datasheet #6
- PIC18F2220-ISO PDF datasheet #7
- PIC18F2220-ISO PDF datasheet #8
- PIC18F2220-ISO PDF datasheet #9
- Current page: 186 of 394
- Download datasheet (7Mb)
PIC18F2220/2320/4220/4320
17.4.9
A Repeated Start condition occurs when the RSEN bit
(SSPCON2<1>) is programmed high and the I
module is in the Idle state. When the RSEN bit is set,
the SCL pin is asserted low. When the SCL pin is sam-
pled low, the Baud Rate Generator is loaded with the
contents of SSPADD<5:0> and begins counting. The
SDA pin is released (brought high) for one Baud Rate
Generator count (T
tor times out, if SDA is sampled high, the SCL pin will
be deasserted (brought high). When SCL is sampled
high, the Baud Rate Generator is reloaded with the
contents of SSPADD<6:0> and begins counting. SDA
and SCL must be sampled high for one T
action is then followed by assertion of the SDA pin
(SDA = 0) for one T
this, the RSEN bit (SSPCON2<1>) will be automatically
cleared and the Baud Rate Generator will not be
reloaded, leaving the SDA pin held low. As soon as a
Start condition is detected on the SDA and SCL pins,
the S bit (SSPSTAT<3>) will be set. The SSPIF bit will
not be set until the Baud Rate Generator has timed out.
FIGURE 17-20:
DS39599G-page 184
Note 1: If RSEN is programmed while any other
2: A bus collision during the Repeated Start
I
START CONDITION TIMING
2
• SDA is sampled low when SCL goes
• SCL goes low before SDA is
event is in progress, it will not take effect.
condition occurs if:
C MASTER MODE REPEATED
from low-to-high.
asserted low. This may indicate that
another master is attempting to
transmit a data ‘1’.
Falling edge of ninth clock,
BRG
BRG
REPEAT START CONDITION WAVEFORM
). When the Baud Rate Genera-
SDA
SCL
while SCL is high. Following
end of Xmit
Write to SSPCON2
occurs here.
SDA = 1,
SCL (no change).
BRG
2
C logic
. This
T
SDA = 1,
SCL = 1
BRG
T
BRG
Immediately following the SSPIF bit getting set, the
user may write the SSPBUF with the 7-bit address in
7-bit mode, or the default first address in 10-bit mode.
After the first eight bits are transmitted and an ACK is
received, the user may then transmit an additional eight
bits of address (10-bit mode) or eight bits of data (7-bit
mode).
17.4.9.1
If the user writes the SSPBUF when a Repeated Start
sequence is in progress, the WCOL is set and the con-
tents of the buffer are unchanged (the write doesn’t
occur).
Note:
Sr = Repeated Start
T
BRG
At completion of Start bit,
hardware clears RSEN bit
Set S (SSPSTAT<3>)
and sets SSPIF
Because queueing of events is not
allowed, writing of the lower 5 bits of
SSPCON2 is disabled until the Repeated
Start condition is complete.
Write to SSPBUF occurs here
WCOL Status Flag
T
BRG
1st bit
T
BRG
© 2007 Microchip Technology Inc.
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