PIC18F1220-H/P Microchip Technology, PIC18F1220-H/P Datasheet - Page 228

• Manufacturer Part Number: PIC18F1220-H/P
• Description: IC MCU 8BIT 4KB FLASH 18PDIP
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18F1220-H/P

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 25MHz
• Connectivity: UART/USART
• Peripherals: Brown-out Detect/Reset, LVD, POR, PWM, WDT
• Number Of I /o: 16
• Program Memory Size: 4KB (2K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 4.2 V ~ 5.5 V
• Data Converters: A/D 7x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 150°C
• Package / Case: 18-DIP (0.300", 7.62mm)
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

PIC18F1220/1320
SLEEP
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Example:
† If WDT causes wake-up, this bit is cleared.
DS39605F-page 226
Q Cycle Activity:
Before Instruction
After Instruction
Decode
TO =
PD =
TO =
PD =
Q1
?
?
1
0
operation
†
Enter Sleep mode
[ label ] SLEEP
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. The Watchdog Timer
and its postscaler are cleared.
The processor is put into Sleep
mode with the oscillator stopped.
1
1
SLEEP
No
Q2
0000
0000
Process
Data
Q3
0000
Sleep
Go to
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
N, OV, C, DC, Z
Subtract f from W with borrow
[ label ] SUBFWB
0 ≤ f ≤ 255
d ∈ [0,1]
a ∈ [0,1]
Subtract register ‘f’ and Carry flag
(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, overriding the BSR value.
If ‘a’ is ‘1’, then the bank will be
selected as per the BSR value
(default).
1
1
SUBFWB REG
SUBFWB
SUBFWB
Read
Q2
0101
0x03
0x02
0x01
0xFF
0x02
0x00
0x00
0x01
2
5
1
2
3
1
0
0
1
2
0
0
2
1
1
0
© 2007 Microchip Technology Inc.
01da
REG, 0, 0
REG, 1, 0
; result is negative
; result is zero
Process
; result is positive
Data
Q3
ffff
f [,d [,a]]
destination
Write to
Q4
ffff