參數(shù)資料
型號(hào): KSZ8851-32MQLI
廠商: Micrel Inc
文件頁(yè)數(shù): 61/88頁(yè)
文件大?。?/td> 0K
描述: IC CTLR MAC/PHY NON PCI 128PQFP
標(biāo)準(zhǔn)包裝: 66
控制器類(lèi)型: 以太網(wǎng)控制器,MAC/PHY
接口: 總線
電源電壓: 1.8V,2.5V,3.3V
工作溫度: -40°C ~ 85°C
安裝類(lèi)型: 表面貼裝
封裝/外殼: 128-BFQFP
供應(yīng)商設(shè)備封裝: 128-PQFP(14x20)
包裝: 托盤(pán)
其它名稱: 576-3630
KSZ8851-32MQLI-ND
PIC16F8X
1998 Microchip Technology Inc.
DS30430C-page 65
NOP
No Operation
Syntax:
[
label ]
NOP
Operands:
None
Operation:
No operation
Status Affected:
None
Encoding:
00
0000
0xx0
0000
Description:
No operation.
Words:
1
Cycles:
1
Q Cycle Activity:
Q1
Q2
Q3
Q4
Decode
No-Opera
tion
No-Opera
tion
No-Operat
ion
Example
NOP
OPTION
Load Option Register
Syntax:
[
label ]
OPTION
Operands:
None
Operation:
(W)
→ OPTION
Status Affected: None
Encoding:
00
0000
0110
0010
Description:
The contents of the W register are
loaded in the OPTION register. This
instruction is supported for code com-
patibility with PIC16C5X products.
Since OPTION is a readable/writable
register, the user can directly address
it.
Words:
1
Cycles:
1
Example
To maintain upward compatibility
with future PIC16CXX products,
do not use this instruction.
RETFIE
Return from Interrupt
Syntax:
[
label ]
RETFIE
Operands:
None
Operation:
TOS
→ PC,
1
→ GIE
Status Affected:
None
Encoding:
00
0000
1001
Description:
Return from Interrupt. Stack is POPed
and Top of Stack (TOS) is loaded in the
PC. Interrupts are enabled by setting
Global Interrupt Enable bit, GIE
(INTCON<7>). This is a two cycle
instruction.
Words:
1
Cycles:
2
Q Cycle Activity:
Q1
Q2
Q3
Q4
1st Cycle
Decode
No-Opera
tion
Set the
GIE bit
Pop from
the Stack
2nd Cycle
No-Operat
ion
No-Opera
tion
No-Opera
tion
No-Operat
ion
Example
RETFIE
After Interrupt
PC =
TOS
GIE =
1
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