PIC18F6621-I/PT Microchip Technology Inc., PIC18F6621-I/PT Datasheet - Page 312

• Manufacturer Part Number: PIC18F6621-I/PT
• Description: 64 PIN, 64 KB FLASH, 3840 RAM, 52 I/O
• Manufacturer: Microchip Technology Inc.

Specifications of PIC18F6621-I/PT

• A/d Inputs: 12-Channel, 10-Bit
• Comparators: 2
• Cpu Speed: 10 MIPS
• Eeprom Memory: 1024 Bytes
• Input Output: 54
• Interface: I2C/SPI/UART/USART
• Memory Type: Flash
• Number Of Bits: 8
• Package Type: 64-pin TQFP
• Programmable Memory: 64K Bytes
• Ram Size: 3.8K Bytes
• Speed: 40 MHz
• Timers: 2-8-bit, 3-16-bit
• Voltage, Range: 2-5.5 V
• Lead Free Status / Rohs Status: RoHS Compliant part Electrostatic Device

PIC18F6525/6621/8525/8621
SLEEP
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Example:
† If WDT causes wake-up, this bit is cleared.
DS39612B-page 310
Q Cycle Activity:
Before Instruction
After Instruction
Decode
TO =
PD =
TO =
PD =
Q1
?
?
1 †
0
operation
Enter Sleep Mode
[ label ]
None
00h → WDT;
0 → WDT postscaler;
1 → TO;
0 → PD
TO, PD
The Power-Down status bit (PD) is
cleared. The Time-out status bit (TO)
is set. Watchdog Timer and its
postscaler are cleared.
The processor is put into Sleep mode
with the oscillator stopped.
1
1
SLEEP
No
Q2
0000
SLEEP
0000
Process
Data
Q3
0000
Go to
Sleep
Q4
0011
SUBFWB
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Example 1:
Example 2:
Example 3:
Q Cycle Activity:
Before Instruction
After Instruction
Before Instruction
After Instruction
Before Instruction
After Instruction
Decode
REG
W
C
REG
W
C
Z
N
REG
W
C
REG
W
C
Z
N
REG
W
C
REG
W
C
Z
N
Q1
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
register ‘f’
(W) – (f) – (C) → dest
Subtract register ‘f’ and Carry flag
riding the BSR value. If ‘a’ is ‘1’, then
1
Subtract f from W with Borrow
[ label ]
0 ≤ f ≤ 255
d ∈ [0,1]
a ∈ [0,1]
N, OV, C, DC, Z
(borrow) from W (2’s complement
method). If ‘d’ is ‘0’, the result is stored
in W. If ‘d’ is ‘1’, the result is stored in
register ‘f’ (default). If ‘a’ is ‘0’, the
Access Bank will be selected, over-
the bank will be selected as per the
BSR value (default).
1
SUBFWB
SUBFWB
SUBFWB
Read
Q2
0101
3
2
1
FF
2
0
0
1
2
5
1
2
3
1
0
0
1
2
0
0
2
1
1
0
 2005 Microchip Technology Inc.
; result is negative
; result is positive
; result is zero
SUBFWB
01da
REG, 1, 0
REG, 0, 0
REG, 1, 0
Process
Data
Q3
ffff
f [,d [,a]
destination
Write to
Q4
ffff