Difference and significance between on chip RAM & on-chip XRAM

What is the exact difference between On-Chip RAM & On-Chip XRAM ? Is the means XRAM means only extended RAM? What is the significance of both?
Difference and significance between on chip RAM & on-chip XRAM

What is the exact difference between On-Chip RAM & On-Chip XRAM ? Is the means XRAM means only extended RAM? What is the significance of both?
On chip RAM Algorithm

I am trying to debug an LPC23XX application from IRAM. Does anyone know the correct programming algorithm for loading the program into IRAM using ULINK?
On-chip RAM allocation

Hello, I would like to optimize speed of program performing. Therefore I want to locate some variables to DPRAM using L166 class idata . I was not successful, if I had used dynamic allocation by operator...
On chip RAM Algorithm

I am trying to debug an LPC23XX application from IRAM. Does anyone know the correct programming algorithm for loading the program into IRAM using ULINK?