参数资料
型号: AT91SAM9XE512-QU
厂商: Atmel
文件页数: 113/159页
文件大小: 0K
描述: MCU ARM9 512K FLASH 208-PQFP
产品培训模块: MCU Product Line Introduction
标准包装: 24
系列: SAM9XE
核心处理器: ARM9
芯体尺寸: 16/32-位
速度: 180MHz
连通性: EBI/EMI,以太网,I²C,MMC,SPI,SSC,UART/USART,USB
外围设备: 欠压检测/复位,POR,PWM,WDT
输入/输出数: 96
程序存储器容量: 512KB(512K x 8)
程序存储器类型: 闪存
RAM 容量: 56K x 8
电压 - 电源 (Vcc/Vdd): 1.65 V ~ 1.95 V
数据转换器: A/D 4x10b
振荡器型: 内部
工作温度: -40°C ~ 85°C
封装/外壳: 208-MQFP,208-PQFP
包装: 托盘
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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