r5f21346unfp Renesas Electronics Corporation., r5f21346unfp Datasheet - Page 18

• Manufacturer Part Number: r5f21346unfp
• Description: R8c/34u Group, R8c/34k Group Renesas Mcu
• Manufacturer: Renesas Electronics Corporation.

R8C/34U Group, R8C/34K Group
R01DS0113EJ0110 Rev.1.10
Jun 15, 2011
3.
3.1
Figure 3.1
Figure 3.2 is a Memory Map of R8C/34U Group. The R8C/34U Group has a 1-Mbyte address space from addresses
00000h to FFFFFh. For example, a 64-Kbyte internal ROM area is allocated addresses 04000h to 13FFFh.
The fixed interrupt vector table is allocated addresses 0FFDCh to 0FFFFh. The starting address of each interrupt
routine is stored here.
The internal ROM (data flash) is allocated addresses 03000h to 03FFFh.
The internal RAM is allocated higher addresses, beginning with address 00400h. For example, a 8-Kbyte internal
RAM area is allocated addresses 00400h to 023FFh. 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 (the SFR areas
for the DTC and other modules). Peripheral function control registers are allocated here. All unallocated spaces
within the SFRs are reserved and cannot be accessed by users.
0XXXXh
0YYYYh
ZZZZZh
FFFFFh
Notes:
02C00h
02FFFh
03FFFh
0FFFFh
002FFh
00000h
00400h
03000h
R5F21346UNFP, R5F21346UDFP
R5F21346UNXXXFP, R5F21346UDXXXFP
R5F21348UNFP, R5F21348UDFP
R5F21348UNXXXFP, R5F21348UDXXXFP
Memory
1. The data flash indicates block A (1 Kbyte), block B (1 Kbyte), block C (1 Kbyte), and block D (1 Kbyte).
2. The SFR areas for the DTC and other modules are allocated to addresses 02C00h to 02FFFh.
3. The blank areas are reserved and cannot be accessed by users.
R8C/34U Group
(Refer to 4. Special Function
(Refer to 4. Special Function
(program ROM)
(program ROM)
Registers (SFRs))
Registers (SFRs))
(data flash)
Internal ROM
Internal ROM
Internal ROM
Internal RAM
Memory Map of R8C/34U Group
Part Number
SFR
SFR
(2)
(1)
32 Kbytes
64 Kbytes
Size
0FFDCh
0FFFFh
Address 0YYYYh
Watchdog timer, oscillation stop detection, voltage monitor
08000h
04000h
Internal ROM
Address ZZZZZh
Undefined instruction
BRK instruction
Address match
Address break
13FFFh
Single step
(Reserved)
Overflow
Reset
-
4 Kbytes
8 Kbytes
Size
Internal RAM
Address 0XXXXh
013FFh
023FFh
Page 18 of 91
3. Memory