R5F2121AJFP#U0 Renesas Electronics America, R5F2121AJFP#U0 Datasheet - Page 28
![MCU FLASH 96K 5K CMOS 48-LQFP](/photos/28/61/286102/48-lqfp__plqp0048kb-a_sml.jpg)
R5F2121AJFP#U0
Manufacturer Part Number
R5F2121AJFP#U0
Description
MCU FLASH 96K 5K CMOS 48-LQFP
Manufacturer
Renesas Electronics America
Series
R8C/2x/21r
Datasheet
1.R5F21216JFP.pdf
(503 pages)
Specifications of R5F2121AJFP#U0
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
96KB (96K x 8)
Program Memory Type
FLASH
Ram Size
5K 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
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
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R8C/20 Group, R8C/21 Group
Rev.2.00 Aug 27, 2008
REJ09B0250-0200
2.
Figure 2.1 shows the CPU Registers. The CPU contains 13 registers. Of these, R0, R1, R2, R3, A0, A1, and FB
comprise a register bank. Two sets of register banks are provided.
Figure 2.1
b31
Central Processing Unit (CPU)
NOTE:
1. A register bank comprises these registers. Two sets of register banks are provided.
CPU Registers
R3
R2
b15
Page 10 of 458
IPL
b19
b19
INTBH
The 4-high order bits of INTB are INTBH and
the 16-low order bits of INTB are INTBL.
b15
b15
b15
b15
R0H (high-order of R0)
R1H (high-order of R1) R1L (low-order of R1)
b8
U
b7
PC
I
INTBL
USP
FLG
ISP
FB
SB
R2
R3
A0
A1
b8b7
O
R0L (low-order of R0)
B
S
Z
D
C
b0
b0
b0
b0
b0
b0
2. Central Processing Unit (CPU)
Frame base registers
Address registers
Data registers
User stack pointer
Interrupt stack pointer
Static base register
Flag register
Carry flag
Debug flag
Zero flag
Sign flag
Register bank select flag
Overflow flag
Interrupt enable flag
Stack pointer select flag
Reserved area
Processor interrupt priority level
Reserved area
Interrupt table register
Program counter
(1)
(1)
(1)
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