参数资料
| 型号： | ADE7116ASTZF8 |
| 厂商： | Analog Devices Inc |
| 文件页数： | 84/152页 |
| 文件大小： | 0K |
| 描述： | IC ENERGY METER 64-LQFP |
| 产品变化通告： | Product Discontinuance 27/Oct/2011 |
| 标准包装： | 160 |
| 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 |
| 电流 - 电源： | 4mA |
| 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： | 托盘 |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页第57页第58页第59页第60页第61页第62页第63页第64页第65页第66页第67页第68页第69页第70页第71页第72页第73页第74页第75页第76页第77页第78页第79页第80页第81页第82页第83页当前第84页第85页第86页第87页第88页第89页第90页第91页第92页第93页第94页第95页第96页第97页第98页第99页第100页第101页第102页第103页第104页第105页第106页第107页第108页第109页第110页第111页第112页第113页第114页第115页第116页第117页第118页第119页第120页第121页第122页第123页第124页第125页第126页第127页第128页第129页第130页第131页第132页第133页第134页第135页第136页第137页第138页第139页第140页第141页第142页第143页第144页第145页第146页第147页第148页第149页第150页第151页第152页
ADE7116/ADE7156/ADE7166/ADE7169/ADE7566/ADE7569
BASIC 8052 REGISTERS
Program Counter (PC)
The program counter holds the 2-byte address of the next
instruction to be fetched. The PC is initialized with 0x00 at reset
and is incremented after each instruction is performed. Note
that the amount that is added to the PC depends on the number
of bytes in the instruction, therefore, the increment can range
from one to three bytes. The program counter is not directly
accessible to the user but can be directly modified by CALL and
JMP instructions that change which part of the program is active.
Instruction Register (IR)
The instruction register holds the opcode of the instruction
being executed. The opcode is the binary code that results from
assembling an instruction. This register is not directly accessible
to the user.
Register Banks
There are four banks, each containing an 8-byte-wide register, for
a total of 32 bytes of registers. These registers are convenient for
temporary storage of mathematical operands. An instruction
involving the accumulator and a register can be executed in one
clock cycle, as opposed to two clock cycles to perform an
instruction involving the accumulator and a literal or a byte of
general-purpose RAM. The register banks are located in the first
32 bytes of RAM.
The active register bank is selected by the RS0 and RS1 bits in
the program status word SFR (PSW, Address 0xD0).
Accumulator
The accumulator is a working register, storing the results of
many arithmetic or logical operations. The accumulator is used
in more than half of the 8052 instructions where it is usually
referred to as A. The program status register (PSW) constantly
monitors the number of bits that are set in the accumulator to
determine if it has even or odd parity. The accumulator is stored
in the SFR space (see Table 56).
Data Pointer (DPTR)
The data pointer SFR (DPTR, Address 0x82 and Address 0x83)
is made up of two 8-bit registers: DPL (low byte, Address 0x82),
and DPH (high byte, Address 0x83). These SFRs provide
memory addresses for internal code and data access. The DPTR
can be manipulated as a 16-bit register (DPTR = DPH, DPL) or
as two independent 8-bit registers (DPH and DPL) (see Table
59 and Table 60).
The 8052 MCU core architecture supports dual data pointers
(see the 8052 MCU Core Architecture section).
Stack Pointer (SP)
The stack pointer SFR (SP, Address 0x81) keeps track of the
current address of the top of the stack. To push a byte of data
onto the stack, the stack pointer is incremented and the data is
moved to the new top of the stack. To pop a byte of data off the
stack, the top byte of data is moved into the awaiting address
and the stack pointer is decremented. The stack is a last in, first
out (LIFO) method of data storage because the most recent
addition to the stack is the first to come off it.
The stack is used during CALL and RET instructions to keep
track of the address to move into the PC when returning from
the function call. The stack is also manipulated when vectoring
for interrupts to keep track of the prior state of the PC.
The stack resides in the internal extended RAM, and the
SP register holds the address of the stack in the extended RAM.
The advantage of this solution is that the stack is segregated to
the internal XRAM. The use of the general-purpose RAM can
be limited to data storage. The use of the extended internal
RAM can be limited to the stack pointer. This separation limits
the chance of data RAM corruption when the stack pointer
overflows in data RAM.
Data can still be stored in XRAM by using the MOVX command.
B Register
The B register is used by the multiply and divide instructions,
MUL AB and DIV AB to hold one of the operands. Because it is
0xFF
0x00
256 BYTES OF
RAM
(DATA)
0xFF
0x00
256 BYTES OF
ON-CHIP XRAM
DATA + STACK
not used for many instructions, it can be used as a scratch pad
register like those in the register banks. The B register is stored
in the SFR space (see Table 56).
Program Status Word (PSW)
The PSW register (PSW, Address 0xD0) reflects the status of
arithmetic and logical operations through carry, auxiliary carry,
Figure 82. Extended Stack Pointer Operation
To change the default starting address for the stack, move a
value into the stack pointer (SP). For example, to enable the
extended stack pointer and initialize it at the beginning of the
XRAM space, use the following code:
and overflow flags. The parity flag reflects the parity of the
contents of the accumulator, which can be helpful for
MOV
SP,#00H
communication protocols. The program status word SFR is bit
addressable.
Rev. B | Page 84 of 152
相关PDF资料 |
PDF描述 |
|---|---|
| ADE5166ASTZF62-RL | IC METER/8052/RTC/LCD DRV 64LQFP |
| ADE5166ASTZF62 | IC METER/8052/RTC/LCD DRV 64LQFP |
| NCP699SN28T1G | IC REG LDO 2.8V 240MA 5TSOP |
| RSC50DRYN-S13 | CONN EDGECARD 100POS .100 EXTEND |
| LFEC3E-4QN208I | IC FPGA 3.1KLUTS 208PQFP |
相关代理商/技术参数 |
参数描述 |
|---|---|
| ADE7116ASTZF8-RL | 功能描述:IC ENERGY METER 64-LQFP 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:* |
| ADE7156ASTZF16 | 功能描述:IC ENERGY METER 64-LQFP 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:* |
| ADE7156ASTZF16-RL | 功能描述:IC ENERGY METER 64-LQFP 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:* |
| ADE7156ASTZF8 | 功能描述:IC ENERGY METER 64-LQFP 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:* |
| ADE7156ASTZF8-RL | 功能描述:IC ENERGY METER 64-LQFP 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:* |
发布紧急采购，3分钟左右您将得到回复。