PIC16F628-20/SS Microchip Technology, PIC16F628-20/SS Datasheet - Page 113

• Manufacturer Part Number: PIC16F628-20/SS
• Description: IC MCU FLASH 2KX14 COMP 20SSOP
• Manufacturer: Microchip Technology
• Series: PIC® 16Fr

Specifications of PIC16F628-20/SS

• Core Size: 8-Bit
• Program Memory Size: 3.5KB (2K x 14)
• Core Processor: PIC
• Speed: 20MHz
• Connectivity: UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 16
• Program Memory Type: FLASH
• Eeprom Size: 128 x 8
• Ram Size: 224 x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 20-SSOP
• Controller Family/series: PIC16F
• No. Of I/o's: 16
• Eeprom Memory Size: 128Byte
• Ram Memory Size: 224Byte
• Cpu Speed: 20MHz
• No. Of Timers: 3
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: XLT20SS-1 - SOCKET TRANSITION 18DIP 20SSOPAC164307 - MODULE SKT FOR PM3 28SSOPAC164018 - MODULE SKT PROMATEII 20SSOP
• Data Converters: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

 2003 Microchip Technology Inc.
BTFSS
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Example
Bit Test f, Skip if Set
[ label ] BTFSS f,b
0 ≤ f ≤ 127
0 ≤ b < 7
skip if (f<b>) = 1
None
01
If bit 'b' in register 'f' is '1' then the
next instruction is skipped.
If bit 'b' is '1', then the next
instruction fetched during the
current instruction execution, is
discarded and a NOP is executed
instead, making this a two-cycle
instruction.
1
1
HERE
FALSE
TRUE
Before Instruction
After Instruction
if FLAG<1> = 1,
(2)
PC = address HERE
if FLAG<1> = 0,
PC =
PC =
11bb
BTFSS
GOTO
•
•
•
address FALSE
address TRUE
bfff
REG1
PROCESS_CODE
ffff
Preliminary
CALL
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Example
CLRF
Encoding:
Description:
Words:
Cycles:
Example
Status Affected:
Operands:
Operation:
Syntax:
Call Subroutine
[ label ] CALL k
0 ≤ k ≤ 2047
(PC)+ 1→ TOS,
k → PC<10:0>,
(PCLATH<4:3>) → PC<12:11>
None
10
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
HERE
Before Instruction
After Instruction
Clear f
[ label ] CLRF
0 ≤ f ≤ 127
00h → (f)
1 → Z
Z
00
The contents of register 'f' are
cleared and the Z bit is set.
1
1
CLRF
Before Instruction
After Instruction
PIC16F62X
PC
PC
TOS = Address HERE+1
REG1
REG1
Z
0kkk
CALL
0001
REG1
= Address HERE
= Address THERE
DS40300C-page 111
= 0x5A
= 0x00
= 1
f
kkkk
THERE
1fff
kkkk
ffff