PIC16F1828-I/ML Microchip Technology, PIC16F1828-I/ML Datasheet - Page 315
![IC PIC MCU 8BIT 14KB FLASH 20QFN](/photos/19/6/190620/4696160_sml.jpg)
PIC16F1828-I/ML
Manufacturer Part Number
PIC16F1828-I/ML
Description
IC PIC MCU 8BIT 14KB FLASH 20QFN
Manufacturer
Microchip Technology
Series
PIC® XLP™ 16Fr
Datasheets
1.PIC16F722-ISS.pdf
(8 pages)
2.PIC16F1826-IP.pdf
(40 pages)
3.PIC16F1824-ISL.pdf
(2 pages)
4.PIC16F1824-ISL.pdf
(419 pages)
5.PIC16F1824-ISL.pdf
(10 pages)
Specifications of PIC16F1828-I/ML
Core Size
8-Bit
Program Memory Size
7KB (4K x 14)
Core Processor
PIC
Speed
32MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
17
Program Memory Type
FLASH
Eeprom Size
256 x 8
Ram Size
256 x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.5 V
Data Converters
A/D 12x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
20-VFQFN Exposed Pad
Controller Family/series
PIC16F
No. Of I/o's
18
Eeprom Memory Size
256Byte
Ram Memory Size
256Byte
Cpu Speed
32MHz
No. Of Timers
5
Processor Series
PIC16F
Core
PIC
3rd Party Development Tools
52715-96, 52716-328, 52717-734
Development Tools By Supplier
PG164130, DV164035, DV244005, DV164005
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC16F1828-I/ML
Manufacturer:
MICROCHIP
Quantity:
631
Part Number:
PIC16F1828-I/ML
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
- PIC16F722-ISS PDF datasheet
- PIC16F1826-IP PDF datasheet #2
- PIC16F1824-ISL PDF datasheet #3
- PIC16F1824-ISL PDF datasheet #4
- PIC16F1824-ISL PDF datasheet #5
- Current page: 315 of 419
- Download datasheet (4Mb)
PIC16(L)F1824/1828
26.3.1
The EUSART module supports automatic detection
and calibration of the baud rate.
In the Auto-Baud Detect (ABD) mode, the clock to the
BRG is reversed. Rather than the BRG clocking the
incoming RX signal, the RX signal is timing the BRG.
The Baud Rate Generator is used to time the period of
a received 55h (ASCII “U”) which is the Sync character
for the LIN bus. The unique feature of this character is
that it has five rising edges including the Stop bit edge.
Setting the ABDEN bit of the BAUDCON register starts
the auto-baud calibration sequence
While the ABD sequence takes place, the EUSART
state machine is held in Idle. On the first rising edge of
the receive line, after the Start bit, the SPBRG begins
counting up using the BRG counter clock as shown in
Table
at the end of the eighth bit period. At that time, an
accumulated value totaling the proper BRG period is
left in the SPBRGH, SPBRGL register pair, the ABDEN
bit is automatically cleared and the RCIF interrupt flag
is set. The value in the RCREG needs to be read to
clear the RCIF interrupt. RCREG content should be
discarded. When calibrating for modes that do not use
the SPBRGH register the user can verify that the
SPBRGL register did not overflow by checking for 00h
in the SPBRGH register.
The BRG auto-baud clock is determined by the BRG16
and BRGH bits as shown in
both the SPBRGH and SPBRGL registers are used as
a 16-bit counter, independent of the BRG16 bit setting.
While calibrating the baud rate period, the SPBRGH
FIGURE 26-6:
DS41419B-page 314
BRG Value
BRG Clock
ABDEN bit
RCIF bit
(Interrupt)
SPBRGH
SPBRGL
RCREG
26-6. The fifth rising edge will occur on the RX pin
RX pin
RCIDL
Note 1:
Read
AUTO-BAUD DETECT
Set by User
The ABD sequence requires the EUSART module to be configured in Asynchronous mode.
XXXXh
AUTOMATIC BAUD RATE CALIBRATION
Table
0000h
26-6. During ABD,
(Figure
Start
bit 0
XXh
XXh
Edge #1
26-6).
Preliminary
bit 1
bit 2
Edge #2
and SPBRGL registers are clocked at 1/8th the BRG
base clock rate. The resulting byte measurement is the
average bit time when clocked at full speed.
TABLE 26-6:
BRG16
Note:
Note 1: If the WUE bit is set with the ABDEN bit,
bit 3
0
0
1
1
2: It is up to the user to determine that the
3: During
bit 4
Edge #3
BRGH
During the ABD sequence, SPBRGL and
SPBRGH registers are both used as a 16-bit
counter, independent of BRG16 setting.
auto-baud detection will occur on the byte
following the Break character (see
Section 26.3.3
Break”).
incoming character baud rate is within the
range of the selected BRG clock source.
Some combinations of oscillator frequency
and EUSART baud rates are not possible.
auto-baud counter starts counting at 1.
Upon
sequence, to achieve maximum accuracy,
subtract 1 from the SPBRGH:SPBRGL
register pair.
0
1
0
1
bit 5
BRG COUNTER CLOCK RATES
completion
the
BRG Base
bit 6
Edge #4
2010 Microchip Technology Inc.
F
F
F
F
Clock
OSC
OSC
OSC
OSC
auto-baud
bit 7
/64
/16
/16
/4
“Auto-Wake-up
of
Stop bit
Edge #5
the
Auto Cleared
process,
BRG ABD
001Ch
F
F
F
F
1Ch
00h
OSC
OSC
OSC
Clock
OSC
auto-baud
/512
/128
/128
/32
the
on
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