R5F21344PJFP RENESAS [Renesas Technology Corp], R5F21344PJFP Datasheet - Page 17

no-image

R5F21344PJFP

Manufacturer Part Number
R5F21344PJFP
Description
R8C/34P Group, R8C/34R Group RENESAS MCU
Manufacturer
RENESAS [Renesas Technology Corp]
Datasheet
Under development
R8C/34P Group, R8C/34R Group
R01DS0027EJ0010 Rev.0.10
Jul 05, 2011
3.2
Figure 3.2
Figure 3.2 is a Memory Map of R8C/34R Group. The R8C/34R 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 32-Kbyte internal ROM area is allocated addresses 08000h 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 2.5-Kbyte internal
RAM area is allocated addresses 00400h to 00DFFh. 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 and 02C00h to 02FFFh. Peripheral
function control registers are allocated here. All unallocated spaces within the SFRs are reserved and cannot be
accessed by users.
R5F21344RJFP, R5F21344RKFP
R5F21346RJFP, R5F21346RKFP
0XXXXh
0YYYYh
02C00h
ZZZZZh
FFFFFh
02FFFh
0FFFFh
002FFh
00000h
00400h
03000h
Note:
1. The blank areas are reserved and cannot be accessed by users.
R8C/34R Group
(Refer to 4. Special Function
Part Number
(program ROM)
(program ROM)
Function Registers
(Refer to 4. Special
Internal ROM
Internal ROM
Internal RAM
Registers (SFRs))
Preliminary document
Specifications in this document are tentative and subject to change.
Memory Map of R8C/34R Group
(SFRs))
SFR
SFR
16 Kbytes
32 Kbytes
Size
0FFDCh
0FFFFh
0FFD8h
Address 0YYYYh
Internal ROM
0C000h
08000h
Watchdog timer, oscillation stop detection, voltage monitor
Address ZZZZZh
Undefined instruction
BRK instruction
Address match
Reserved area
Address break
Single step
(Reserved)
Overflow
Reset
1.5 Kbytes
2.5 Kbytes
Size
Internal RAM
Address 0XXXXh
00DFFh
009FFh
Page 17 of 53
3. Memory

Related parts for R5F21344PJFP