参数资料
型号: ADE5566ASTZF62-RL
厂商: Analog Devices Inc
文件页数: 97/156页
文件大小: 0K
描述: IC ENERGY METERING 1PHASE 64LQFP
产品变化通告: Product Discontinuance 27/Oct/2011
标准包装: 1,500
输入阻抗: 770 千欧
测量误差: 0.1%
电压 - 高输入/输出: 2V
电压 - 低输入/输出: 0.8V
电源电压: 2.4 V ~ 3.7 V
测量仪表类型: 单相
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 64-LQFP
供应商设备封装: 64-LQFP(10x10)
包装: 带卷 (TR)
Data Sheet
INTERRUPT VECTORS
When an interrupt occurs, the program counter is pushed onto the
stack, and the corresponding interrupt vector address is loaded
into the program counter. When the interrupt service routine is
complete, the program counter is popped off the stack by a RETI
instruction. This allows program execution to resume from where
it was interrupted. The interrupt vector addresses are shown in
Table 87.
ADE5166/ADE5169/ADE5566/ADE5569
The shortest interrupt latency is 3.25 instruction cycles, 800 ns
with a clock of 4.096 MHz. The longest interrupt latency for a
high priority interrupt results when a pending interrupt is gen-
erated during a low priority interrupt RETI, followed by a multiply
instruction. This results in a maximum interrupt latency of 16.25
instruction cycles, 4 μs with a clock of 4.096 MHz.
CONTEXT SAVING
When the 8052 vectors to an interrupt, only the program counter
Table 87. Interrupt Vector Addresses
Source
IE0
TF0
IE1
TF1
RI + TI
TF2 + EXF2
ITEMP (Temperature ADC)
ISPI/I2CI
Vector Address
0x0003
0x000B
0x0013
0x001B
0x0023
0x002B
0x0033
0x003B
is saved on the stack. Therefore, the interrupt service routine must
be written to ensure that registers used in the main program are
restored to their pre-interrupt state. Common SFRs that can be
modified in the ISR are the accumulator register and the PSW
register. Any general-purpose registers that are used as scratch
pads in the ISR should also be restored before exiting the
interrupt. The following example 8052 code shows how to
restore some commonly used registers:
GeneralISR:
; save the current accumulator value
IPSM (Power Supply)
0x0043
PUSH
ACC
IADE (Energy Measurement DSP)
IRTC (RTC Interval Timer)
0x004B
0x0053
; save the current status and register bank
selection
WDT (Watchdog Timer)
RI2 + TI2
0x005B
0x0063
PUSH
PSW
INTERRUPT LATENCY
The 8052 architecture requires that at least one instruction
execute between interrupts. To ensure this, the 8052 MCU
core hardware prevents the program counter from jumping to
an interrupt service routine (ISR) immediately after completing
; service interrupt
; restore the status and register bank
selection
a RETI instruction or an access of the IP and IE SFRs.
POP
PSW
; restore the accumulator
Rev. D | Page 97 of 156
POP
RETI
ACC
相关PDF资料
PDF描述
ADE7156ASTZF16 IC ENERGY METER 64-LQFP
ADE7156ASTZF8-RL IC ENERGY METER 64-LQFP
ADE7518ASTZF8-RL IC ENERGY METER MCU 8K 64LQFP
ADE7569ASTZF16 IC ENERGY METER MCU 16K 64LQFP
ADE7752BARWZ-RL IC ENERGY METERING 3PHASE 24SOIC
相关代理商/技术参数
参数描述
ADE5569 制造商:AD 制造商全称:Analog Devices 功能描述:Single-Phase Energy Measurement IC with 8052 MCU, RTC, and LCD Driver
ADE5569ASTZF62 功能描述:IC METER/8052/RTC/LCD DRV 64LQFP RoHS:是 类别:集成电路 (IC) >> PMIC - 能量测量 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:*
ADE5569ASTZF62 制造商:Analog Devices 功能描述:Energy Management IC
ADE5569ASTZF62-RL 功能描述:IC METER/8052/RTC/LCD DRV 64LQFP RoHS:是 类别:集成电路 (IC) >> PMIC - 能量测量 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:*
ADE-6 制造商:MINI 制造商全称:Mini-Circuits 功能描述:Surface Mount Frequency Mixer