PIC18F24J11 MICROCHIP [Microchip Technology], PIC18F24J11 Datasheet - Page 457
PIC18F24J11
Manufacturer Part Number
PIC18F24J11
Description
28/44-Pin, Low-Power, High-Performance USB Microcontrollers with nanoWatt XLP Technology
Manufacturer
MICROCHIP [Microchip Technology]
Datasheet
1.PIC18F24J11.pdf
(536 pages)
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CALLW
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description
Words:
Cycles:
Example:
2011 Microchip Technology Inc.
Q Cycle Activity:
Before Instruction
After Instruction
operation
Decode
No
PC
PCLATH =
PCLATU =
W
PC
TOS
PCLATH =
PCLATU =
W
Q1
=
=
=
=
=
operation
Subroutine Call using WREG
CALLW
None
(PC + 2) TOS,
(W) PCL,
(PCLATH) PCH,
(PCLATU) PCU
None
First, the return address (PC + 2) is
pushed onto the return stack. Next, the
contents of W are written to PCL; the
existing value is discarded. Then, the
contents of PCLATH and PCLATU are
latched into PCH and PCU, respec-
tively. The second cycle is executed as
a NOP instruction while the new next
instruction is fetched.
Unlike CALL, there is no option to
update W, STATUS or BSR.
1
2
HERE
WREG
Read
0000
No
Q2
address (HERE)
10h
00h
06h
001006h
address (HERE + 2)
10h
00h
06h
CALLW
0000
Push PC to
operation
stack
No
Q3
0001
operation
operation
No
No
Q4
0100
PIC18F46J11 FAMILY
MOVSF
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
1st word (source)
2nd word (destin.)
Description:
Words:
Cycles:
Example:
Q Cycle Activity:
Before Instruction
After Instruction
Decode
Decode
FSR2
Contents
of 85h
REG2
FSR2
Contents
of 85h
REG2
Q1
source addr
No dummy
Determine
operation
Move Indexed to f
MOVSF [z
0 z
0 f
((FSR2) + z
None
The contents of the source register are
moved to destination register ‘f
actual address of the source register is
determined by adding the 7-bit literal
offset ‘z
of FSR2. The address of the destina-
tion register is specified by the 12-bit lit-
eral ‘f
addresses can be anywhere in the
4096-byte data space (000h to FFFh).
The MOVSF instruction cannot use the
PCL, TOSU, TOSH or TOSL as the
destination register.
If the resultant source address points to
an Indirect Addressing register, the
value returned will be 00h.
2
2
MOVSF
read
1110
1111
No
Q2
=
=
=
=
=
=
d
s
d
4095
127
’ in the second word. Both
s
’, in the first word, to the value
80h
33h
11h
80h
33h
33h
[0x05], REG2
s
s
1011
ffff
source addr
], f
) f
Determine
operation
d
No
Q3
d
DS39932D-page 457
0zzz
ffff
source reg
register ‘f’
(dest)
Read
Write
d
Q4
zzzz
ffff
’. The
s
d
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