PIC16C71-04/P Microchip Technology Inc., PIC16C71-04/P Datasheet - Page 73

• Manufacturer Part Number: PIC16C71-04/P
• Description: 18 PIN, 1.75 KB OTP, 36 RAM, 13 I/O
• Manufacturer: Microchip Technology Inc.

Specifications of PIC16C71-04/P

• A/d Inputs: 4-Channel, 8-Bit
• Cpu Speed: 5 MIPS
• Eeprom Memory: 0 Bytes
• Input Output: 13
• Memory Type: OTP
• Number Of Bits: 8
• Package Type: 18-pin PDIP
• Programmable Memory: 1.75K Bytes
• Ram Size: 36 Bytes
• Speed: 20 MHz
• Timers: 1-8-bit
• Voltage, Range: 3-6 V
• Lead Free Status / Rohs Status: RoHS Compliant part Electrostatic Device

BTFSS
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Q Cycle Activity:
Example
1997 Microchip Technology Inc.
If Skip:
Bit Test f, Skip if Set
[ label ] BTFSS f,b
0
0
skip if (f<b>) = 1
None
If bit 'b' in register 'f' is '0' then the next
instruction is executed.
If bit 'b' is '1', then the next instruction is
discarded and a NOP is executed
instead, making this a 2T
1
1(2)
Before Instruction
After Instruction
(2nd Cycle)
Decode
HERE
FALSE
TRUE
NOP
Q1
Q1
01
f
b < 7
127
PC =
if FLAG<1> = 0,
PC =
if FLAG<1> = 1,
PC =
register 'f'
11bb
BTFSC
GOTO
•
•
•
Read
NOP
Q2
Q2
address HERE
address FALSE
address TRUE
FLAG,1
PROCESS_CODE
Process
bfff
NOP
data
Q3
Q3
CY
instruction.
ffff
NOP
NOP
Q4
Q4
CALL
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Q Cycle Activity:
Example
2nd Cycle
1st Cycle
Call Subroutine
[ label ] CALL k
0
(PC)+ 1
k
(PCLATH<4:3>)
None
Call Subroutine. First, return address
(PC+1) is pushed onto the stack. The
eleven bit immediate address is loaded
into PC bits <10:0>. The upper bits of
the PC are loaded from PCLATH.
CALL is a two cycle instruction.
1
2
Before Instruction
After Instruction
Decode
HERE
NOP
Q1
10
k
PC<10:0>,
PIC16C71X
2047
PC = Address HERE
PC = Address THERE
TOS = Address HERE+1
Push PC
literal 'k',
to Stack
TOS,
0kkk
CALL
Read
NOP
Q2
DS30272A-page 73
THERE
Process
kkkk
PC<12:11>
NOP
data
Q3
Write to
kkkk
NOP
Q4
PC