AT89C51RD2 XRAM access query

Hello, I am using AT89C51RD2 as it has 1792 XRAM. Now,I am using its default XRAM 768 bytes of XRAM. Now,I want its whole 1792 bytes of XRAM. I have initialized its AUXR with 0x11.But...
AT89C51RD2 XRAM access query

Hello, I am using AT89C51RD2 as it has 1792 XRAM. Now,I am using its default XRAM 768 bytes of XRAM. Now,I want its whole 1792 bytes of XRAM. I have initialized its AUXR with 0x11.But...
How to communicate At89c51rd2(Master) with At89c51rd2(Slave) using SPI protocol ?

Dear all, How to communicate At89c51rd2(Master) with At89c51rd2(Slave) using SPI protocol.I am using seperate pins for spi(not the dedicated pins of spi protocol).I am using 20 Mhz crystal for both...
How to communicate At89c51rd2(Master) with At89c51rd2(Slave) using SPI protocol ?

Dear all, How to communicate At89c51rd2(Master) with At89c51rd2(Slave) using SPI protocol.I am using seperate pins for spi(not the dedicated pins of spi protocol).I am using 20 Mhz crystal for both...
AT89C51RD2

HELLO PEOPLE I AM IN URGENT NEED OF A PROGRAMMING CIRCUIT FOR ATC89C51RD2 CAN ANY ONE HELP ME