PIC18LF248-I/SO Microchip Technology, PIC18LF248-I/SO Datasheet - Page 59
![IC MCU CAN FLASH 8K 28-SOIC](/photos/6/59/65909/150-28-soic_sml.jpg)
PIC18LF248-I/SO
Manufacturer Part Number
PIC18LF248-I/SO
Description
IC MCU CAN FLASH 8K 28-SOIC
Manufacturer
Microchip Technology
Series
PIC® 18Fr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.PIC18LF242-ISO.pdf
(36 pages)
3.PIC18F248-ISO.pdf
(402 pages)
4.PIC18F248-ISO.pdf
(8 pages)
Specifications of PIC18LF248-I/SO
Core Processor
PIC
Core Size
8-Bit
Speed
40MHz
Connectivity
CAN, I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, LVD, POR, PWM, WDT
Number Of I /o
22
Program Memory Size
16KB (8K x 16)
Program Memory Type
FLASH
Eeprom Size
256 x 8
Ram Size
768 x 8
Voltage - Supply (vcc/vdd)
2 V ~ 5.5 V
Data Converters
A/D 5x10b
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
28-SOIC (7.5mm Width)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
- PIC16F616T-ISL PDF datasheet
- PIC18LF242-ISO PDF datasheet #2
- PIC18F248-ISO PDF datasheet #3
- PIC18F248-ISO PDF datasheet #4
- Current page: 59 of 402
- Download datasheet (7Mb)
4.13
The Status register, shown in Register 4-2, contains the
arithmetic status of the ALU. The Status register can be
the destination for any instruction, as with any other
register. If the Status register is the destination for an
instruction that affects the Z, DC, C, OV or N bits, then
the write to these five bits is disabled. These bits are set
or cleared according to the device logic. Therefore, the
result of an instruction with the Status register as
destination may be different than intended.
REGISTER 4-2:
© 2006 Microchip Technology Inc.
Status Register
bit 7-5
bit 4
bit 3
bit 2
bit 1
bit 0
STATUS REGISTER
bit 7
Unimplemented: Read as ‘0’
N: Negative bit
This bit is used for signed arithmetic (2’s complement). It indicates whether the result of the ALU
operation was negative (ALU MSb = 1).
1 = Result was negative
0 = Result was positive
OV: Overflow bit
This bit is used for signed arithmetic (2’s complement). It indicates an overflow of the 7-bit
magnitude which causes the sign bit (bit 7) to change state.
1 = Overflow occurred for signed arithmetic (in this arithmetic operation)
0 = No overflow occurred
Z: Zero bit
1 = The result of an arithmetic or logic operation is zero
0 = The result of an arithmetic or logic operation is not zero
DC: Digit Carry/Borrow bit
For ADDWF, ADDLW, SUBLW and SUBWF instructions:
1 = A carry-out from the 4th low-order bit of the result occurred
0 = No carry-out from the 4th low-order bit of the result
Note:
C: Carry/Borrow bit
For ADDWF, ADDLW, SUBLW and SUBWF instructions:
1 = A carry-out from the Most Significant bit of the result occurred
0 = No carry-out from the Most Significant bit of the result occurred
Note:
Legend:
R = Readable bit
-n = Value at POR
U-0
—
For Borrow, the polarity is reversed. A subtraction is executed by adding the 2’s
complement of the second operand. For rotate (RRCF, RRNCF, RLCF and RLNCF)
instructions, this bit is loaded with either bit 4 or bit 3 of the source register.
For Borrow, the polarity is reversed. A subtraction is executed by adding the 2’s
complement of the second operand. For rotate (RRF, RLF) instructions, this bit is
loaded with either the high or low-order bit of the source register.
U-0
—
W = Writable bit
‘1’ = Bit is set
U-0
—
R/W-x
For example, CLRF STATUS will clear the upper three
bits and set the Z bit. This leaves the Status register as
000u u1uu (where u = unchanged).
It is recommended, therefore, that only BCF, BSF,
SWAPF, MOVFF and MOVWF instructions are used to
alter the Status register, because these instructions do
not affect the Z, C, DC, OV or N bits from the Status
register. For other instructions which do not affect the
status bits, see Table 25-2.
N
Note:
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
The C and DC bits operate as a Borrow
and Digit Borrow bit respectively, in
subtraction.
R/W-x
OV
R/W-x
PIC18FXX8
Z
x = Bit is unknown
R/W-x
DC
DS41159E-page 57
R/W-x
C
bit 0
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