PIC12LF1822-I/MF Microchip Technology, PIC12LF1822-I/MF Datasheet - Page 262
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PIC12LF1822-I/MF
Manufacturer Part Number
PIC12LF1822-I/MF
Description
IC, 8BIT MCU, PIC12, 32MHZ, DFN-8
Manufacturer
Microchip Technology
Series
PIC® XLP™ 12Fr
Datasheets
1.PIC12F1822T-ISN.pdf
(404 pages)
2.PIC12F1822T-ISN.pdf
(10 pages)
3.PIC12F1822-IMF.pdf
(398 pages)
Specifications of PIC12LF1822-I/MF
Controller Family/series
PIC12
No. Of I/o's
6
Eeprom Memory Size
256Byte
Ram Memory Size
128Byte
Cpu Speed
32MHz
No. Of Timers
3
Core Size
8 Bit
Program Memory Size
3.5KB
Core Processor
PIC
Speed
32MHz
Connectivity
I²C, LIN, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
6
Program Memory Type
FLASH
Eeprom Size
256 x 8
Ram Size
128 x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 3.6 V
Data Converters
A/D 4x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
8-DFN
Processor Series
PIC12LF
Core
PIC
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:
PIC12LF1822-I/MF
Manufacturer:
MICROCHIP
Quantity:
3 600
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PIC12F/LF1822/PIC16F/LF1823
25.5.8
The addressing procedure for the I
the first byte after the Start condition usually deter-
mines which device will be the slave addressed by the
master device. The exception is the general call
address which can address all devices. When this
address is used, all devices should, in theory, respond
with an acknowledge.
The general call address is a reserved address in the
I
GCEN bit of the SSP1CON2 register is set, the slave
module will automatically ACK the reception of this
address regardless of the value stored in SSP1ADD.
After the slave clocks in an address of all zeros with
the R/W bit clear, an interrupt is generated and slave
software
Figure 25-23
sequence.
FIGURE 25-24:
25.5.9
An SSP1 Mask (SSP1MSK) register
available in I
held in the SSP1SR register during an address
comparison operation. A zero (‘0’) bit in the SSP1MSK
register has the effect of making the corresponding bit
of the received address a “don’t care”.
This register is reset to all ‘1’s upon any Reset
condition and, therefore, has no effect on standard
SSP1 operation until written with a mask value.
The SSP1 Mask register is active during:
• 7-bit Address mode: address compare of A<7:1>.
• 10-bit Address mode: address compare of A<7:0>
DS41413B-page 262
2
C protocol, defined as address 0x00. When the
only. The SSP1 mask has no effect during the
reception of the first (high) byte of the address.
GCEN (SSP1CON2<7>)
SDA
SCL
SSP1IF
BF (SSP1STAT<0>)
GENERAL CALL ADDRESS SUPPORT
SSP1 MASK REGISTER
can
2
C Slave mode as a mask for the value
shows
read
S
SLAVE MODE GENERAL CALL ADDRESS SEQUENCE
a
SSP1BUF
1
general
2
General Call Address
2
3
C bus is such that
(Register
and
call
4
reception
5
respond.
25-5) is
6
Preliminary
7
R/W =
8
0
ACK
In 10-bit Address mode, the UA bit will not be set on
the reception of the general call address. The slave
will prepare to receive the second byte as data, just as
it would in 7-bit mode.
If the AHEN bit of the SSP1CON3 register is set, just
as with any other address reception, the slave hard-
ware will stretch the clock after the 8th falling edge of
SCL. The slave must then set its ACKDT value and
release the clock with communication progressing as it
would normally.
Address is compared to General Call Address
after ACK, set interrupt
9
D7
1
D6
2
Cleared by software
SSP1BUF is read
Receiving Data
D5
3
D4
4
D3
2010 Microchip Technology Inc.
5
D2
6
D1
7
D0
8
ACK
9
’1’
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