PIC16C554-04E/SS Microchip Technology, PIC16C554-04E/SS Datasheet - Page 59
![IC MCU OTP 512X14 20SSOP](/photos/6/58/65895/150-20-ssop_sml.jpg)
PIC16C554-04E/SS
Manufacturer Part Number
PIC16C554-04E/SS
Description
IC MCU OTP 512X14 20SSOP
Manufacturer
Microchip Technology
Series
PIC® 16Cr
Specifications of PIC16C554-04E/SS
Core Processor
PIC
Core Size
8-Bit
Speed
4MHz
Peripherals
POR, WDT
Number Of I /o
13
Program Memory Size
896B (512 x 14)
Program Memory Type
OTP
Ram Size
80 x 8
Voltage - Supply (vcc/vdd)
3 V ~ 5.5 V
Oscillator Type
External
Operating Temperature
-40°C ~ 125°C
Package / Case
20-SSOP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Data Converters
-
Connectivity
-
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Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Example
2002 Microchip Technology Inc.
BTFSS
[ label ] BTFSS f,b
0 ≤ f ≤ 127
0 ≤ b < 7
skip if (f<b>) = 1
None
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(2)
Before Instruction
After Instruction
Bit Test f, Skip if Set
01
HERE
FALSE
TRUE
PC
if FLAG<1> = 0,
PC =
if FLAG<1> = 1,
PC =
11bb
BTFSS
GOTO
•
•
•
=
address FALSE
address TRUE
address HERE
bfff
FLAG,1
PROCESS_CODE
ffff
Preliminary
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Example
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Example
CALL
CLRF
[ label ] CALL k
0 ≤ k ≤ 2047
(PC)+ 1→ TOS,
k → PC<10:0>,
(PCLATH<4:3>) → PC<12:11>
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 instruc-
tion.
1
2
Before Instruction
After Instruction
[ label ] CLRF
0 ≤ f ≤ 127
00h → (f)
1 → Z
Z
The contents of register 'f' are cleared
and the Z bit is set.
1
1
Before Instruction
After Instruction
Call Subroutine
10
HERE
Clear f
00
CLRF
PC
PC
TOS = Address HERE+1
FLAG_REG=0x5A
FLAG_REG=0x00
Z
PIC16C55X
= Address HERE
= Address THERE
0kkk
CALL
0001
FLAG_REG
=1
f
DS40143D-page 57
kkkk
1fff
THERE
kkkk
ffff
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