R5F21218JFP#U1 Renesas Electronics America, R5F21218JFP#U1 Datasheet - Page 15

• Manufacturer Part Number: R5F21218JFP#U1
• Description: IC R8C/21 MCU FLASH 48LQFP
• Manufacturer: Renesas Electronics America
• Series: R8C/2x/21r

Specifications of R5F21218JFP#U1

• Core Processor: R8C
• Core Size: 16/32-Bit
• Speed: 20MHz
• Connectivity: I²C, LIN, SIO, SSU, UART/USART
• Peripherals: POR, Voltage Detect, WDT
• Number Of I /o: 41
• Program Memory Size: 64KB (64K x 8)
• Program Memory Type: FLASH
• Ram Size: 3K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 12x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 48-LQFP
• For Use With: R0K521237S000BE - KIT DEV RSK R8C/23R0E521237CPE00 - EMULATOR COMPACT R8C/20/21/22/23
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

R8C/20 Group, R8C/21 Group
Rev.2.00 Aug 27, 2008
REJ03B0120-0200
3.
3.1
Figure 3.1
Figure 3.1 shows a Memory Map of R8C/20 Group. The R8C/20 Group has 1 Mbyte of address space from
address 00000h to FFFFFh.
The internal ROM is allocated lower addresses, beginning with address 0FFFFh. For example, a 48-Kbyte internal
ROM is allocated addresses 04000h to 0FFFFh.
The fixed interrupt vector table is allocated addresses 0FFDCh to 0FFFFh. They store the starting address of each
interrupt routine.
The internal RAM is allocated higher addresses, beginning with address 00400h. For example, a 2.5-Kbyte
internal RAM is allocated addresses 00400h to 00DFFh. The internal RAM is used not only for storing data but
also for calling subroutines and as stacks when interrupt requests are acknowledged.
Special function registers (SFR) are allocated addresses 00000h to 002FFh. The peripheral function control
registers are allocated here. All addresses within the SFR, which have nothing allocated are reserved for future
user and cannot be accessed by users.
Memory
R5F21206JFP, R5F21206KFP
R5F21207JFP, R5F21207KFP
R5F21208JFP, R5F21208KFP
R5F2120AJFP, R5F2120AKFP
R5F2120CJFP, R5F2120CKFP
NOTES:
1. The blank regions are reserved. Do not access locations in these regions.
2. Do not use addresses 20000h to 23FFFh because these areas are used for the emulator debugger. Refer to 23. Notes on
R8C/20 Group
Emulator Debugger of Hardware Manual.
Part Number
0XXXXh
0SSSSh
0YYYYh
ZZZZZh
FFFFFh
0FFFFh
002FFh
00000h
00400h
01300h
02000h
03000h
Memory Map of R8C/20 Group
Function Registers
(Refer to 4. Special
(program ROM)
(program ROM)
Internal ROM
Reserved area
Internal ROM
Internal RAM
Internal RAM
Page 13 of 41
(SFRs))
SFR
128 Kbytes
32 Kbytes
48 Kbytes
64 Kbytes
96 Kbytes
Size
(2)
Address 0YYYYh Address ZZZZZh
08000h
04000h
04000h
04000h
04000h
Internal ROM
0FFDCh
0FFFFh
1BFFFh
13FFFh
23FFFh
-
-
Watchdog timer•oscillation stop detection•voltage detection
2.5 Kbytes
3 Kbytes
5 Kbytes
6 Kbytes
2 Kbytes
Size
Undefined instruction
BRK instruction
Address match
Address break
Single step
(Reserved)
Overflow
Reset
Address 0XXXXh
00BFFh
00DFFh
00FFFh
00FFFh
00FFFh
Internal RAM
Address 0SSSSh
03BFFh
037FFh
-
-
-
3. Memory