參數資料
型號: AT91SAM9XE128-QU
廠商: Atmel
文件頁數: 113/159頁
文件大小: 0K
描述: MCU ARM9 128K FLASH 208-PQFP
產品培訓模塊: MCU Product Line Introduction
標準包裝: 24
系列: SAM9XE
核心處理器: ARM9
芯體尺寸: 16/32-位
速度: 180MHz
連通性: EBI/EMI,以太網,I²C,MMC,SPI,SSC,UART/USART,USB
外圍設備: 欠壓檢測/復位,POR,PWM,WDT
輸入/輸出數: 96
程序存儲器容量: 128KB(128K x 8)
程序存儲器類型: 閃存
RAM 容量: 40K x 8
電壓 - 電源 (Vcc/Vdd): 1.65 V ~ 1.95 V
數據轉換器: A/D 4x10b
振蕩器型: 內部
工作溫度: -40°C ~ 85°C
封裝/外殼: 208-MQFP,208-PQFP
包裝: 托盤
配用: AT91SAM9XE-EK-ND - KIT EVAL FOR AT91SAM9XE
AT91SAM-ICE-ND - EMULATOR FOR AT91 ARM7/ARM9
2007 Microchip Technology Inc.
DS41213D-page 45
PIC16F5X
CALL
Subroutine Call
Syntax:
[ label ] CALL k
Operands:
0
≤ k ≤ 255
Operation:
(PC) + 1
→ TOS;
k
→ PC<7:0>;
(Status<6:5>)
→ PC<10:9>;
0
→ PC<8>
Status Affected:
None
Encoding:
1001
kkkk
Description:
Subroutine call. First, return
address (PC + 1) is pushed onto
the stack. The eight-bit immediate
address is loaded into PC bits
<7:0>. The upper bits PC<10:9>
are loaded from STATUS<6:5>,
PC<8> is cleared. CALL is a
two-cycle instruction.
Words:
1
Cycles:
2
Example:
HERE
CALL
THERE
Before Instruction
PC
=
address (HERE)
After Instruction
PC
=
address (THERE)
TOS =
address (HERE + 1)
CLRF
Clear f
Syntax:
[ label ] CLRF
f
Operands:
0
≤ f ≤ 31
Operation:
00h
→ (f);
1
→ Z
Status Affected:
Z
Encoding:
0000
011f
ffff
Description:
The contents of register ‘f’ are
cleared and the Z bit is set.
Words:
1
Cycles:
1
Example:
CLRF
FLAG_REG
Before Instruction
FLAG_REG
=
0x5A
After Instruction
FLAG_REG
=
0x00
Z=
1
CLRW
Clear W
Syntax:
[ label ] CLRW
Operands:
None
Operation:
00h
→ (W);
1
→ Z
Status Affected:
Z
Encoding:
0000
0100
0000
Description:
The W register is cleared. Zero bit
(Z) is set.
Words:
1
Cycles:
1
Example:
CLRW
Before Instruction
W=
0x5A
After Instruction
W=
0x00
Z=
1
CLRWDT
Clear Watchdog Timer
Syntax:
[ label ] CLRWDT
Operands:
None
Operation:
00h
→ WDT;
0
→ WDT prescaler (if assigned);
1
→ TO;
1
→ PD
Status Affected:
TO, PD
Encoding:
0000
0100
Description:
The CLRWDT instruction resets the
WDT. It also resets the prescaler if
the prescaler is assigned to the
WDT and not Timer0. Status bits
TO and PD are set.
Words:
1
Cycles:
1
Example:
CLRWDT
Before Instruction
WDT counter
=
?
After Instruction
WDT counter
=
0x00
WDT prescaler =
0
TO
=1
PD
=1
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