RAMM0 : origin = 0x0001B1, length = 0x00024F
RAMM1 : origin = 0x000400, length = 0x0003F8 /* on-chip RAM block M1 */
// RAMM1_RSVD : origin = 0x0007F8, length = 0x000008 /* Reserve and do not use for code as per the errata advisory "Memory: Prefetching Beyond Valid Memory" */
RAMD0 : origin = 0x00C000, length = 0x000800
RAMD1 : origin = 0x00C800, length = 0x000800
RAMLS0 : origin = 0x008000, length = 0x000800
RAMLS1 : origin = 0x008800, length = 0x000800
RAMLS2 : origin = 0x009000, length = 0x000800
RAMLS3 : origin = 0x009800, length = 0x000800
RAMLS4 : origin = 0x00A000, length = 0x000800
RAMLS5 : origin = 0x00A800, length = 0x000800
RAMLS6 : origin = 0x00B000, length = 0x000800
RAMLS7 : origin = 0x00B800, length = 0x000800
RAMGS0 : origin = 0x00D000, length = 0x001000
RAMGS1 : origin = 0x00E000, length = 0x001000
RAMGS2 : origin = 0x00F000, length = 0x001000
RAMGS3 : origin = 0x010000, length = 0x001000
RAMGS4 : origin = 0x011000, length = 0x001000
RAMGS5 : origin = 0x012000, length = 0x001000
其中RAM M0，D0，LS ,GS都表示什么意思？
