PIC17C42A-25I/PT Microchip Technology, PIC17C42A-25I/PT Datasheet - Page 107
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PIC17C42A-25I/PT
Manufacturer Part Number
PIC17C42A-25I/PT
Description
IC MCU OTP 2KX16 PWM 44TQFP
Manufacturer
Microchip Technology
Series
PIC® 17Cr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.PIC17C42A-16P.pdf
(241 pages)
3.PIC17C42A-16P.pdf
(4 pages)
Specifications of PIC17C42A-25I/PT
Core Processor
PIC
Core Size
8-Bit
Speed
25MHz
Connectivity
UART/USART
Peripherals
POR, PWM, WDT
Number Of I /o
33
Program Memory Size
4KB (2K x 16)
Program Memory Type
OTP
Ram Size
232 x 8
Voltage - Supply (vcc/vdd)
4.5 V ~ 6 V
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
44-TQFP, 44-VQFP
For Use With
AC164315 - MODULE SKT MPLAB PM3 44TQFPAC174005 - MODULE SKT PROMATEII 44TQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Data Converters
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC17C42A-25I/PT
Manufacturer:
Microchip Technology
Quantity:
10 000
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15.0
The PIC17CXX instruction set consists of 58 instruc-
tions. Each instruction is a 16-bit word divided into an
OPCODE and one or more operands. The opcode
specifies the instruction type, while the operand(s) fur-
ther specify the operation of the instruction. The
PIC17CXX instruction set can be grouped into three
types:
• byte-oriented
• bit-oriented
• literal and control operations.
These formats are shown in Figure 15-1.
Table 15-1 shows the field descriptions for the
opcodes. These descriptions are useful for under-
standing the opcodes in Table 15-2 and in each spe-
cific instruction descriptions.
byte-oriented instructions , 'f' represents a file regis-
ter designator and 'd' represents a destination designa-
tor. The file register designator specifies which file
register is to be used by the instruction.
The destination designator specifies where the result of
the operation is to be placed. If 'd' = '0', the result is
placed in the WREG register. If 'd' = '1', the result is
placed in the file register specified by the instruction.
bit-oriented instructions , 'b' represents a bit field des-
ignator which selects the number of the bit affected by
the operation, while 'f' represents the number of the file
in which the bit is located.
literal and control operations , 'k' represents an 8- or
11-bit constant or literal value.
The instruction set is highly orthogonal and is grouped
into:
• byte-oriented operations
• bit-oriented operations
• literal and control operations
All instructions are executed within one single instruc-
tion cycle, unless:
• a conditional test is true
• the program counter is changed as a result of an
• a table read or a table write instruction is exe-
One instruction cycle consists of four oscillator periods.
Thus, for an oscillator frequency of 25 MHz, the normal
instruction execution time is 160 ns. If a conditional test
is true or the program counter is changed as a result of
an instruction, the instruction execution time is 320 ns.
1996 Microchip Technology Inc.
instruction
cuted (in this case, the execution takes two
instruction cycles with the second cycle executed
as a NOP )
INSTRUCTION SET SUMMARY
This document was created with FrameMaker 4 0 4
TABLE 15-1:
GLINTD Global Interrupt Disable bit (CPUSTA<4>)
TBLPTR Table Pointer (16-bit)
TBLATL Table Latch low byte
TBLATH Table Latch high byte
label Label name
C,DC,
TBLAT Table Latch (16-bit) consists of high byte (TBLATH)
Field
i
WREG Working register (accumulator)
dest Destination either the WREG register or the speci-
Z,OV
talics User defined term (font is courier)
TOS
BSR
WDT
< >
( )
PC
TO
PD
[ ]
f
p
i
t
b
k
x
d
u
s
Register file address (00h to FFh)
Peripheral register file address (00h to 1Fh)
Table pointer control i = '0' (do not change)
i = '1' (increment after instruction execution)
Table byte select t = '0' (perform operation on lower
byte)
t = '1' (perform operation on upper byte literal field,
constant data)
Bit address within an 8-bit file register
Literal field, constant data or label
Don't care location (= '0' or '1')
The assembler will generate code with x = '0'. It is
the recommended form of use for compatibility with
all Microchip software tools.
Destination select
0 = store result in WREG
1 = store result in file register f
Default is d = '1'
Unused, encoded as '0'
Destination select
0 = store result in file register f and in the WREG
1 = store result in file register f
Default is s = '1'
ALU status bits Carry, Digit Carry, Zero, Overflow
and low byte (TBLATL)
Top of Stack
Program Counter
Bank Select Register
Watchdog Timer Counter
Time-out bit
Power-down bit
fied register file location
Options
Contents
Assigned to
Register bit field
In the set of
OPCODE FIELD
DESCRIPTIONS
Description
PIC17C4X
DS30412C-page 107
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