PIC16C84-04I/SO Microchip Technology, PIC16C84-04I/SO Datasheet - Page 51

• Manufacturer Part Number: PIC16C84-04I/SO
• Description: IC MIC CTL EEPM 1K 4MHZ IT18SOIC
• Manufacturer: Microchip Technology
• Series: PIC® 16Cr

Specifications of PIC16C84-04I/SO

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 4MHz
• Peripherals: POR, WDT
• Number Of I /o: 13
• Program Memory Size: 1.75KB (1K x 14)
• Program Memory Type: EEPROM
• Eeprom Size: 64 x 8
• Ram Size: 36 x 8
• Voltage - Supply (vcc/vdd): 4 V ~ 6 V
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 18-SOIC (7.5mm Width)
• Lead Free Status / RoHS Status: Request inventory verification / Request inventory verification
• Data Converters: -
• Connectivity: -

9.0
Each PIC16CXX instruction is a 14-bit word divided
into an OPCODE which specifies the instruction type
and one or more operands which further specify the
operation of the instruction. The PIC16CXX instruction
set summary in Table 9-2 lists byte-oriented, bit-ori-
TABLE 9-1
ented, and literal and control operations. Table 9-1
shows the opcode field descriptions.
For byte-oriented instructions, 'f' represents a file reg-
ister designator and 'd' represents a destination desig-
nator. 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' is zero, the result is
placed in the W register. If 'd' is one, the result is placed
in the file register specified in the instruction.
For bit-oriented instructions, 'b' represents a bit field
designator 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.
For literal and control operations, 'k' represents an
eight or eleven bit constant or literal value.
PCLATH
label
Field
i
dest
talics
TOS
GIE
WDT
< >
( )
1998 Microchip Technology Inc.
PC
TO
PD
[ ]
f
W
b
k
x
d
The assembler will generate code with x = 0. It is the
recommended form of use for compatibility with all
INSTRUCTION SET SUMMARY
Destination either the W register or the specified
Destination select; d = 0: store result in W,
Bit address within an 8-bit file register
Register file address (0x00 to 0x7F)
Literal field, constant data or label
User defined term (font is courier)
d = 1: store result in file register f.
Working register (accumulator)
Program Counter High Latch
Don't care location (= 0 or 1)
OPCODE FIELD
DESCRIPTIONS
Global Interrupt Enable bit
Watchdog Timer/Counter
Microchip software tools.
register file location
Program Counter
Register bit field
Power-down bit
Default is d = 1
Description
Top of Stack
Time-out bit
Label name
Assigned to
In the set of
Contents
Options
The instruction set is highly orthogonal and is grouped
into three basic categories:
• 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 or the pro-
gram counter is changed as a result of an instruction.
In this case, the execution takes two instruction cycles
with the second cycle executed as a NOP. One instruc-
tion cycle consists of four oscillator periods. Thus, for
an oscillator frequency of 4 MHz, the normal instruction
execution time is 1 s. If a conditional test is true or the
program counter is changed as a result of an instruc-
tion, the instruction execution time is 2 s.
Table 9-2 lists the instructions recognized by the
MPASM assembler.
Figure 9-1 shows the general formats that the instruc-
tions can have.
All examples use the following format to represent a
hexadecimal number:
where h signifies a hexadecimal digit.
FIGURE 9-1:
Note:
Byte-oriented file register operations
Bit-oriented file register operations
Literal and control operations
General
CALL and GOTO instructions only
0xhh
13
13
13
13
d = 0 for destination W
d = 1 for destination f
f = 7-bit file register address
b = 3-bit bit address
f = 7-bit file register address
k = 8-bit immediate value
k = 11-bit immediate value
OPCODE
OPCODE
OPCODE
OPCODE
To maintain upward compatibility with
future PIC16CXX products, do not use the
OPTION and TRIS instructions.
11
GENERAL FORMAT FOR
INSTRUCTIONS
10 9
10
8
b (BIT #)
d
7
8
PIC16C84
6
7
7 6
k (literal)
f (FILE #)
k (literal)
DS30445C-page 51
f (FILE #)
0
0
0
0