參數(shù)資料
型號： PIC16F54T-I/SS
廠商： Microchip Technology
文件頁數(shù)： 49/88頁
文件大?。?/td> 0K
描述： IC MCU FLASH 512X12 20SSOP
產(chǎn)品培訓模塊： Asynchronous Stimulus
標準包裝： 1,600
系列： PIC® 16F
核心處理器： PIC
芯體尺寸： 8-位
速度： 20MHz
外圍設備： POR，WDT
輸入/輸出數(shù)： 12
程序存儲器容量： 768B（512 x 12）
程序存儲器類型： 閃存
RAM 容量： 25 x 8
電壓 - 電源 (Vcc/Vdd)： 2 V ~ 5.5 V
振蕩器型： 外部
工作溫度： -40°C ~ 85°C
封裝/外殼： 20-SSOP（0.209"，5.30mm 寬）
包裝： 帶卷 (TR)
2007 Microchip Technology Inc.
DS41213D-page 51
PIC16F5X
SUBWF
Subtract W from f
Syntax:
[ label ] SUBWF f, d
Operands:
0
≤ f ≤ 31
d
∈ [0,1]
Operation:
(f) – (W)
→ (dest)
Status Affected:
C, DC, Z
Encoding:
0000
10df
ffff
Description:
Subtract (2’s complement method)
the W register from register ‘f’. If ‘d’
is ‘0’, the result is stored in the W
register. If ‘d’ is ‘1’, the result is
stored back in register ‘f’.
Words:
1
Cycles:
1
Example 1:
SUBWF
REG1, 1
Before Instruction
REG1
=
3
W=
2
C=
?
After Instruction
REG1
=
1
W=
2
C
=
1
; result is positive
Example 2:
Before Instruction
REG1
=
2
W=
2
C=
?
After Instruction
REG1
=
0
W=
2
C
=
1
; result is zero
Example 3:
Before Instruction
REG1
=
1
W=
2
C=
?
After Instruction
REG1
=
0xFF
W=
2
C
=
0
; result is negative
SWAPF
Swap Nibbles in f
Syntax:
[ label ] SWAPF f, d
Operands:
0
≤ f ≤ 31
d
∈ [0,1]
Operation:
(f<3:0>)
→ (dest<7:4>);
(f<7:4>)
→ (dest<3:0>)
Status Affected:
None
Encoding:
0011
10df
ffff
Description:
The upper and lower nibbles of
register ‘f’ are exchanged. If ‘d’ is
‘0’, the result is placed in W
register. If ‘d’ is ‘1’, the result is
placed in register ‘f’.
Words:
1
Cycles:
1
Example:
SWAPF
REG1,
0
Before Instruction
REG1
=
0xA5
After Instruction
REG1
=
0xA5
W
=
0x5A
TRIS
Load TRIS Register
Syntax:
[ label ] TRIS
f
Operands:
f = 5, 6, 7, 8 or 9
Operation:
(W)
→ TRIS register f
Status Affected:
None
Encoding:
0000
0fff
Description:
TRIS register ‘f’ (f = 5, 6 or 7) is
loaded with the contents of the W
register.
Words:
1
Cycles:
1
Example:
TRIS
PORTB
Before Instruction
W=
0xA5
After Instruction
TRISB
=
0xA5
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