RX634 Datasheet, PDF (22/106 Pages) Renesas Technology Corp – 54 MHz 32-bit RX MCU with FPU, 90 DMIPS, up to 2-Mbyte flash memory

RX634 Group
3. Address Space
Single-chip mode*¹
0000 0000h
0002 0000h
0008 0000h
0010 0000h
0010 8000h
RAM
Reserved area^*3
Peripheral I/O registers
On-chip ROM (E2DataFlash)
(32 KB)
Reserved area^*3
007F C000h
007F C500h
Peripheral I/O registers
Reserved area^*3
007F FC00h
0080 0000h
Peripheral I/O registers
Reserved area^*3
00E0 0000h
0100 0000h
On-chip ROM (program ROM)^*2
(write only)
Reserved area^*3
On-chip ROM enabled
extended mode
0000 0000h
0002 0000h
0008 0000h
0010 0000h
0010 8000h
RAM
Reserved area^*3
Peripheral I/O registers
On-chip ROM (E2DataFlash)
(32 KB)
Reserved area^*3
007F C000h
007F C500h
Peripheral I/O registers
Reserved area^*3
007F FC00h
0080 0000h
Peripheral I/O registers
Reserved area^*3
00E0 0000h
0100 0000h
On-chip ROM (program ROM)^*2
(write only)
Reserved area^*3
0500 0000h
External address space
0800 0000h
Reserved area^*3
On-chip ROM disabled
extended mode
0000 0000h
0002 0000h
0008 0000h
0010 0000h
RAM
Reserved area^*3
Peripheral I/O registers
Reserved area^*3
0500 0000h
0800 0000h
External address space
Reserved area^*3
FF7F C000h
FF80 0000h
On-chip ROM (user boot)
(read only) (16 KB)
Reserved area^*3
FFE0 0000h _{On-chip ROM (program ROM)}*2
FFFF FFFFh
(read only)
FF7F C000h
FF80 0000h
On-chip ROM (user boot)
(read only) (16 KB)
Reserved area^*3
FFE0 0000h _{On-chip ROM (program ROM)}*2
FFFF FFFFh
(read only)
FF00 0000h
External address space
FFFF FFFFh
Note 1. The address space in boot mode and user boot mode is the same as the address space in single-chip mode.
Note 2. The ROM capacity differs depending on the products.
ROM (Byte)
RAM (Byte)
Capacity
Address (for Reading)
Address (for Writing)
Capacity
Address
2M
FFE0 0000h to FFFF FFFFh 00E0 0000h to 00FF FFFFh 128 K
0000 0000h to 0001 FFFFh
1.5 M
FFE8 0000h to FFFF FFFFh 00E8 0000h to 00FF FFFFh 128 K
0000 0000h to 0001 FFFFh
1M
FFF0 0000h to FFFF FFFFh 00F0 0000h to 00FF FFFFh 128 K
0000 0000h to 0001 FFFFh
Note: See Table 1.3, 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
R01DS0255EJ0100 Rev.1.00
Feb 25, 2015
Page 22 of 106