R5F21334CNFP#U0 Renesas Electronics America, R5F21334CNFP#U0 Datasheet - Page 43

• Manufacturer Part Number: R5F21334CNFP#U0
• Description: MCU 1KB FLASH 16K ROM 32-LQFP
• Manufacturer: Renesas Electronics America
• Series: R8C/3x/33Cr

Specifications of R5F21334CNFP#U0

• Core Processor: R8C
• Core Size: 16/32-Bit
• Speed: 20MHz
• Connectivity: I²C, LIN, SIO, SSU, UART/USART
• Peripherals: POR, PWM, Voltage Detect, WDT
• Number Of I /o: 27
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: FLASH
• Ram Size: 1.5K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 12x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 32-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

R8C/33C Group
REJ09B0570-0100 Rev.1.00 Dec. 14, 2009
Page 13 of 589
3.
3.1
Figure 3.1
Figure 3.1 is a Memory Map of R8C/33C Group. The R8C/33C 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 ROM (data flash) is allocated addresses 03000h to 03FFFh.
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.
R5F21331CNFP, R5F21331CDFP
R5F21332CNFP, R5F21332CDFP
R5F21334CNFP, R5F21334CDFP
R5F21335CNFP, R5F21335CDFP
R5F21336CNFP, R5F21336CDFP
0XXXXh
0YYYYh
02C00h
0FFFFh
ZZZZZh
FFFFFh
02FFFh
03FFFh
Memory
002FFh
00000h
00400h
03000h
Notes:
1. Data flash indicates block A (1 Kbyte), block B (1 Kbyte), block C (1 Kbyte), and block D (1 Kbyte).
2. The blank areas are reserved and cannot be accessed by users.
R8C/33C 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))
(data flash)
Internal ROM
Memory Map of R8C/33C Group
(SFRs))
SFR
SFR
(1)
16 Kbytes
24 Kbytes
32 Kbytes
4 Kbytes
8 Kbytes
Size
0FFDCh
0FFD8h
0FFFFh
Address 0YYYYh
Internal ROM
0F000h
0E000h
0C000h
0A000h
08000h
Watchdog timer, oscillation stop detection, voltage monitor
Undefined instruction
Address ZZZZZh
BRK instruction
Address match
Reserved area
Address break
Single step
(Reserved)
Overflow
Reset
−
−
−
−
−
1.5 Kbytes
2.5 Kbytes
512 bytes
2 Kbytes
1 Kbyte
Size
Internal RAM
Address 0XXXXh
00BFFh
00DFFh
005FFh
007FFh
009FFh
3. Memory