RX23T Datasheet, PDF (22/98 Pages) Renesas Technology Corp – 40-MHz 32-bit RX MCUs, built-in FPU, 65.6 DMIPS

RX23T Group
Single-chip mode^*1
0000 0000h
0000 2800h
0000 4000h
0008 4A80h
0008 0000h
0010 0000h
RAM^*2
Reserved area^*3
RAM^*2
Reserved area^*3
Peripheral I/O registers
Reserved area^*3
007F C000h
007F C500h
007F FC00h
0080 0000h
Peripheral I/O registers
Reserved area^*3
Peripheral I/O registers
Reserved area^*3
3. Address Space
FFFE 0000h _{On-chip ROM (program ROM)}
FFFF FFFFh
(read only)^*2
Note 1. The address space in boot mode is the same as the address space in single-chip mode.
Note 2. The capacity of ROM/RAM differs depending on the products.
ROM (bytes)
RAM (bytes)
Capacity Address
Capacity Address
128 Kbytes FFFE 0000h to FFFF FFFFh 12 Kbytes
64 Kbytes FFFF 0000h to FFFF FFFFh
0000 0000h to 0000 27FFh
0000 4000h to 0000 4A7Fh
Note: See Table 1.3 and Table 1.4 List of Products, for the product type name.
Note 3. Reserved areas should not be accessed.
Figure 3.1
Memory Map in Each Operating Mode
R01DS0248EJ0110 Rev.1.10
Jan 13, 2016
Page 22 of 98