R5F213G4DNSP datasheet(14/45 Pages) RENESAS

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R8C/3GD Group

3. Memory

REJ03B0289-0100 Rev.1.00

Feb 26, 2010

Page 12 of 41

Memory

3.1

R8C/3GD Group

Figure 3.1 is a Memory Map of R8C/3GD Group. The R8C/3GD Group has a 1-Mbyte address space from

addresses 00000h to FFFFFh. The internal ROM (program ROM) is allocated lower addresses, beginning with

address 0FFFFh. For example, a 16-Kbyte internal ROM area is allocated addresses 0C000h to 0FFFFh.

The fixed interrupt vector table is allocated addresses 0FFDCh to 0FFFFh. The starting address of each interrupt

routine is stored here.

The internal RAM is allocated higher addresses, beginning with address 00400h. For example, a 1-Kbyte internal

RAM area is allocated addresses 00400h to 007FFh. The internal RAM is used not only for data storage but also as

a stack area when a subroutine is called or when an interrupt request is acknowledged.

Special function registers (SFRs) are allocated addresses 00000h to 002FFh. Peripheral function control registers

are allocated here. All unallocated spaces within the SFRs are reserved and cannot be accessed by users.

Figure 3.1

Memory Map of R8C/3GD Group

0FFFFh

0FFDCh

Note:

1. The blank areas are reserved and cannot be accessed by users.

FFFFFh

0FFFFh

0YYYYh

0XXXXh

00400h

002FFh

00000h

Internal ROM

(program ROM)

Internal RAM

SFR

(Refer to 4. Special

Function Registers

(SFRs))

0FFD8h

Reserved area

Undefined instruction

Overflow

BRK instruction

Address match

Single step

Watchdog timer, oscillation stop detection, voltage monitor

(Reserved)

Reset

Part Number

R5F213G1DNSP, R5F213G1DDSP

R5F213G2DNSP, R5F213G2DDSP

R5F213G4DNSP, R5F213G4DDSP

R5F213G5DNSP, R5F213G5DDSP

R5F213G6DNSP, R5F213G6DDSP

Internal ROM

Internal RAM

Size

Address 0YYYYh

Size

Address 0XXXXh

4 Kbytes

8 Kbytes

16 Kbytes

24 Kbytes

32 Kbytes

0F000h

0E000h

0C000h

0A000h

08000h

1 Kbyte

007FFh

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