R5F2121AJFP#U0 Renesas Electronics America, R5F2121AJFP#U0 Datasheet - Page 40

• Manufacturer Part Number: R5F2121AJFP#U0
• Description: MCU FLASH 96K 5K CMOS 48-LQFP
• Manufacturer: Renesas Electronics America
• Series: R8C/2x/21r

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: -

R8C/20 Group, R8C/21 Group
Rev.2.00 Aug 27, 2008
REJ09B0250-0200
Table 5.2 lists the Pin Functions after Reset, Figure 5.2 shows CPU Register Status after Reset, Figure 5.3 shows
Reset Sequence, and Figure 5.4 shows the OFS Register.
Figure 5.2
Table 5.2
P0, P1, P2
P3_0, P3_1, P3_3 to P3_5, P3_7 Input port
P4_2 to P4_7
P6
Pin Name
b15
CPU Register Status after Reset
Pin Functions after Reset
IPL
b19
Content of addresses 0FFFEh to 0FFFCh
Page 22 of 458
b15
b15
b15
b8
Input port
Input port
Input port
00000h
U
b7
I
0000h
0000h
0000h
0000h
0000h
0000h
0000h
0000h
0000h
0000h
0000h
O
Pin Functions
B
S
Z
D
C
b0
b0
b0
b0
b0
User stack pointer (USP)
Interrupt stack pointer (ISP)
Static base register (SB)
Flag register (FLG)
Data register (R0)
Data register (R1)
Data register (R2)
Data register (R3)
Address register (A0)
Address register (A1)
Frame base register (FB)
Interrupt table register (INTB)
Program counter (PC)
5. Resets