PIC17C42-25/JW Microchip Technology, PIC17C42-25/JW Datasheet - Page 137

• Manufacturer Part Number: PIC17C42-25/JW
• Description: MICRO CTRL 2K X 16 EPROM 40 CDIP
• Manufacturer: Microchip Technology
• Series: PIC® 17Cr

Specifications of PIC17C42-25/JW

• 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: EPROM, UV
• Ram Size: 232 x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Oscillator Type: External
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 40-CDIP (0.600", 15.24mm) Window
• For Use With: AC174001 - MODULE SKT PROMATEII 40DIP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Data Converters: -
• Other names: PIC17C42/JW

SWAPF
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Q Cycle Activity:
Example:
1996 Microchip Technology Inc.
Before Instruction
After Instruction
Decode
REG
REG
Q1
=
=
register 'f'
Swap f
[ label ] SWAPF f,d
0
d
f<3:0>
f<7:4>
The upper and lower nibbles of register
'f' are exchanged. If 'd' is 0 the result is
placed in WREG. If 'd' is 1 the result is
placed in register 'f'.
1
1
SWAPF
None
Read
0001
Q2
0x53
0x35
f
[0,1]
255
REG,
dest<7:4>;
dest<3:0>
110d
Execute
Q3
0
ffff
destination
Write to
Q4
ffff
TABLRD
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Q Cycle Activity:
Decode
Q1
TBLATH or
Table Read
[ label ] TABLRD t,i,f
0
i
t
If t = 1,
If t = 0,
If i = 1,
None
1.
2.
3.
1
2 (3 cycle if f = PCL)
TBLATL
register
Read
1010
Q2
TBLATH
TBLATL
Prog Mem (TBLPTR)
TBLPTR + 1
[0,1]
[0,1]
f
A byte of the table latch (TBLAT)
is moved to register file 'f'.
If t = 0: the high byte is moved;
If t = 1: the low byte is moved
Then the contents of the program
memory location pointed to by
the
(TBLPTR) is loaded into the
16-bit Table Latch (TBLAT).
If i = 1: TBLPTR is incremented;
If i = 0: TBLPTR is not
255
PIC17C4X
16-bit
10ti
incremented
Execute
f;
f;
Q3
DS30412C-page 137
TBLPTR
Table
ffff
register 'f'
Write
Pointer
TBLAT;
Q4
ffff