PIC18C452/JW Microchip Technology, PIC18C452/JW Datasheet - Page 200

• Manufacturer Part Number: PIC18C452/JW
• Description: IC MCU EPROM 16KX16 A/D 40CDIP
• Manufacturer: Microchip Technology
• Series: PIC® 18Cr

Specifications of PIC18C452/JW

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 40MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LVD, POR, PWM, WDT
• Number Of I /o: 33
• Program Memory Size: 32KB (16K x 16)
• Program Memory Type: EPROM, UV
• Ram Size: 1.5K x 8
• Voltage - Supply (vcc/vdd): 4.2 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: External
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 40-CDIP (0.600", 15.24mm) Window
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

PIC18CXX2
BNOV
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Example:
DS39026C-page 198
Q Cycle Activity:
If Jump:
If No Jump:
Before Instruction
After Instruction
operation
Decode
Decode
PC
If Overflow =
If Overflow
No
Q1
Q1
PC
PC
Read literal
Read literal
operation
Branch if Not Overflow
[ label ] BNOV
-128
if overflow bit is ’0’
(PC) + 2 + 2n
None
If the Overflow bit is ’0’, then the
program will branch.
The 2’s complement number ’2n’ is
added to the PC. Since the PC will
have incremented to fetch the next
instruction, the new address will be
PC+2+2n. This instruction is then
a two-cycle instruction.
1
1(2)
HERE
1110
No
Q2
Q2
’n’
’n’
=
=
=
n
address (HERE)
0;
address (Jump)
1;
address (HERE+2)
127
0101
BNOV Jump
operation
Process
Process
Data
Data
No
Q3
Q3
PC
n
nnnn
Write to PC
operation
operation
No
No
Q4
Q4
nnnn
BNZ
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Example:
Q Cycle Activity:
If Jump:
If No Jump:
Before Instruction
After Instruction
operation
Decode
Decode
PC
If Zero
If Zero
No
Q1
Q1
PC
PC
Read literal
Read literal
operation
Branch if Not Zero
[ label ] BNZ
-128
if zero bit is ’0’
(PC) + 2 + 2n
None
If the Zero bit is ’0’, then the pro-
gram will branch.
The 2’s complement number ’2n’ is
added to the PC. Since the PC will
have incremented to fetch the next
instruction, the new address will be
PC+2+2n. This instruction is then
a two-cycle instruction.
1
1(2)
HERE
1110
No
Q2
Q2
’n’
’n’
=
=
=
=
2001 Microchip Technology Inc.
n
address (HERE)
0;
address (Jump)
1;
address (HERE+2)
127
0001
BNZ
operation
Process
Process
Data
Data
No
Q3
Q3
n
PC
Jump
nnnn
Write to PC
operation
operation
Q4
No
Q4
No
nnnn