R5F21191SP#U0 Renesas Electronics America, R5F21191SP#U0 Datasheet - Page 19

• Manufacturer Part Number: R5F21191SP#U0
• Description: IC R8C MCU FLASH 8K 20SSOP
• Manufacturer: Renesas Electronics America
• Series: M16C™ M16C/R8C/Tiny/19r

Specifications of R5F21191SP#U0

• Core Processor: R8C
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: SIO, UART/USART
• Peripherals: LED, POR, Voltage Detect, WDT
• Number Of I /o: 13
• Program Memory Size: 4KB (4K x 8)
• Program Memory Type: FLASH
• Ram Size: 384 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 4x1b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 20-SSOP
• For Use With: R0K521134S000BE - KIT EVAL STARTER FOR R8C/13R0E521174CPE10 - EMULATOR COMPACT R8C/18/19/1
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

R8C/18 Group, R8C/19 Group
Rev.1.40
REJ03B0124-0140
3.2
Figure 3.2
R5F21194SP, R5F21194DSP, R5F21194DD, R5F21194NP
R5F21193SP, R5F21193DSP, R5F21193DD, R5F21193NP
R5F21192SP, R5F21192DSP, R5F21192DD, R5F21192NP
R5F21191SP, R5F21191DSP, R5F21191DD
Figure 3.2 is a Memory Map of R8C/19 Group. The R8C/19 group has 1 Mbyte of 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. They store the starting
address of each interrupt routine.
The internal ROM (data flash) is allocated addresses 02400h to 02BFFh.
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 storing data but also for calling subroutines and as stacks when interrupt requests are
acknowledged.
Special function registers (SFRs) 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 use and cannot be accessed by users.
R8C/19 Group
Apr 14, 2006
0XXXXh
0YYYYh
FFFFFh
02BFFh
0FFFFh
002FFh
00000h
00400h
02400h
Memory Map of R8C/19 Group
NOTES:
(See 4. Special Function
Part Number
1. Data flash block A (1 Kbyte) and B (1 Kbyte) are shown.
2. The blank regions are reserved. Do not access locations in these regions.
(program ROM)
Registers (SFRs))
Expanded area
Internal ROM
Internal ROM
Internal RAM
(data flash)
Page 17 of 38
SFR
(1)
16 Kbytes
12 Kbytes
0FFDCh
0FFFFh
8 Kbytes
4 Kbytes
Size
Internal ROM
Watchdog timer
Address 0YYYYh
0C000h
0D000h
0E000h
0F000h
•
oscillation stop detection
Undefined instruction
BRK instruction
Address match
Address break
Single step
(Reserved)
Overflow
768 bytes
512 bytes
384 bytes
Reset
1 Kbyte
Size
Internal RAM
Address 0XXXXh
•
voltage monitor 2
007FFh
006FFh
005FFh
0057Fh
3. Memory