ADE75 datasheet(140/148 Pages) AD

部件名	ADE75

功能描述	Single-Phase Energy Measurement IC with 8052 MCU, RTC and LCD driver

PDF	148 Pages

Scroll/Zoom	100%

制造商	AD [Analog Devices]

网页	http://www.analog.com

标志

140 / 148 page

ADE75xx/ADE71xx

Preliminary Technical Data

Rev. PrE | Page 140 of 148

Whenever the DPTR is mentioned elsewhere in this data

sheet, active DPTR is implied.

•

Only the MOVC/MOVX @DPTR instructions

automatically post-increment and post-decrement the

DPTR. Other MOVC/MOVX instructions, such as MOVC

PC or MOVC @Ri, do not cause the DPTR to automatically

post-increment and post-decrement.

To illustrate the operation of DPCON, the following code copies

256 bytes of code memory at Address D000H into XRAM,

starting from Address 0000H.

MOV DPTR,#0

;Main DPTR = 0

MOV DPCON,#55H

;Select shadow DPTR

;DPTR1 increment mode

;DPTR0 increment mode

;DPTR auto toggling ON

MOV DPTR,#0D000H ;DPTR = D000H

MOVELOOP: CLR A

MOVC A,@A+DPTR

;Get data

;Post Inc DPTR

;Swap to Main DPTR(Data)

MOVX @DPTR,A

;Put ACC in XRAM

;Increment main DPTR

;Swap Shadow DPTR(Code)

MOV A, DPL

JNZ MOVELOOP

ADE75 数据表(PDF) 140 Page - Analog Devices