參數(shù)資料
型號(hào)： 935208520112
廠商： NXP SEMICONDUCTORS
元件分類： 微控制器/微處理器
英文描述： 8-BIT, 16 MHz, MICROCONTROLLER, PDIP40
封裝： 0.600 INCH, PLASTIC, DIP-40
文件頁數(shù)： 6/80頁
文件大?。?/td> 446K
代理商： 935208520112
1997 Dec 15
14
Philips Semiconductors
Product specication
8-bit microcontrollers
P83C524; P80C528; P83C528
Table 2
Internal and external program memory access with security bit set
INSTRUCTION
ACCESS TO INTERNAL
PROGRAM MEMORY
ACCESS TO EXTERNAL
PROGRAM MEMORY
MOVC in internal program memory
YES
MOVC in external program memory
NO
YES
9.2
Internal Data Memory
The internal data memory is divided into three physically
separated parts: 256 byte of RAM, 256 byte of AUX-RAM,
and a 128 byte special function area (SFR). These parts
can be addressed as follows (see Table 3 and Fig.11):
RAM 0 to 127 can be addressed directly and indirectly
as in the 80C51. Address pointers are R0 and R1 of the
selected register bank.
RAM 128 to 255 can only be addressed indirectly.
Address pointers are R0 and R1 of the selected register
bank.
AUX-RAM 0 to 255 is indirectly addressable as the
external data memory locations 0 to 255 with the MOVX
instructions. Address pointers are R0 and R1 of the
selected register bank and DPTR. When executing from
internal program memory, an access to AUX-RAM 0 to
255 will not affect the ports P0, P2, P3.6 and P3.7.
the SFRs can only be addressed directly in the address
range from 128 to 255.
An access to external data memory locations higher than
255 will be performed with the MOVX DPTR instructions in
the same way as in the 80C51 structure, i.e. with P0 and
P2 as data/address bus and P3.6 and P3.7 as write and
read timing signals (see Figures 7, 8, 9 and 10). Note that
the external data memory cannot be accessed with R0 and
R1 as address pointer.
Fig.11 shows the internal and external data memory
address space. Fig.12 shows the Special Function
Register (SFR) memory map. Four 8-bit register banks
occupy locations 0 through 31 in the lower RAM area. Only
one of these banks may be enabled at a time. The next 16
bytes, locations 32 through 47, contain 128 directly
addressable bit locations.
The stack can be located anywhere in the internal 256 byte
RAM. The stack depth is only limited by the available
internal RAM space of 256 bytes. All registers except the
Program Counter and the four 8-bit register banks reside
in the SFR address space.
Table 3
Internal data memory access
LOCATION
ADDRESSED
RAM 0 to 127
DIRECT and INDIRECT
RAM 128 to 255
INDIRECT only
AUX-RAM 0 to 255
INDIRECT only with MOVX
Special Function Register (SFR) 128 to 255
DIRECT only
相關(guān)PDF資料
PDF描述
935208560557 8-BIT, 16 MHz, MICROCONTROLLER, PQFP44
935264169557 8-BIT, MROM, 16 MHz, MICROCONTROLLER, PQFP44
935208580557 8-BIT, 16 MHz, MICROCONTROLLER, PQFP44
935208540118 8-BIT, 16 MHz, MICROCONTROLLER, PQCC44
935263366112 8-BIT, MROM, 16 MHz, MICROCONTROLLER, PQCC44
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
9-352112-9 制造商:TE Connectivity 功能描述:Z-PACK SHLD.LOWER C - Bulk
9-352151-3 制造商:TE Connectivity 功能描述:ZP,22C.F.U.SH.44MMW/O LUBE - Tape and Reel 制造商:TE CONNECTIVITY 功能描述:ZP,22C.F.U.SH.44MMW/O LUBE
9-352151-9 制造商:TE Connectivity 功能描述:ZP,22C.F.U.SH.44MM - Bulk
935218-17 制造商:JANCO 功能描述:935218-17
9352370001 功能描述:HEAT SHRINK SLEEVE RoHS:是 類別:線纜，導(dǎo)線 - 管理 >> 標(biāo)簽，標(biāo)記 系列:HT-SCE 標(biāo)準(zhǔn)包裝:250 系列:CM-SCE 標(biāo)簽類型:標(biāo)準(zhǔn) 標(biāo)簽尺寸:2.00" x 0.25"（50.8mm x 6.4mm） 顏色:白 材質(zhì):聚烯烴 適用于相關(guān)產(chǎn)品:點(diǎn)陣打印機(jī) 包裝:* 工作溫度:-55°C ~ 135°C 其它名稱:A105291CM-SCE-TP-1/4-4H-9
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*