R5F2121AJFP#U0 Renesas Electronics America, R5F2121AJFP#U0 Datasheet - Page 66

• 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
Figure 7.9
Figure 7.10
Port Pi Direction Register (i = 0 to 4, 6)
Port Pi Register (i = 0 to 4, 6)
b7 b6 b5 b4 b3 b2
NOTES:
b7 b6 b5 b4
NOTES:
1.
2.
3.
1.
2. Nothing is assigned to the P4_0 and P4_1 bits in the P4 register.
Nothing is assigned to the PD3_2 and PD3_6 bits in the PD3 register.
When w riting to the PD3_2 and PD3_6 bits , w rite 0 (input mode). When read, its content is 0.
Nothing is assigned to the PD4_0 to PD4_2, PD4_6 and PD4_7 bits in the PD4 register.
When w riting to the PD4_0 to PD4_2, PD4_6 and PD4_7 bits in the PD4 register, w rite 0 (input mode). When read, its
content is 0.
Write to the PD0 register w ith the next instruction after that used to set the PRC2 bit in the PRCR register to 1 (w rite
enabled).
Nothing is assigned to the P3_2 and P3_6 bits in the P3 register.
When w riting to the P3_2 and P3_6 bits, w rite 0 (“L” level). When read, its content is 0.
When w rite to the P4_0 and P4_1 bits, w rite 0 (“L” level). When read, its content is 0.
b3 b2 b1 b0
b1 b0
Pi (i = 0 to 4 and 6) Registers
PDi (i = 0 to 4 and 6) Registers
Bit Symbol
Bit Symbol
Symbol
Symbol
PDi_0
PDi_1
PDi_2
PDi_3
PDi_4
PDi_5
PDi_6
PDi_7
PD0
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PD1
PD2
PD3
PD4
PD6
Pi_0
Pi_1
Pi_2
Pi_3
Pi_4
Pi_5
Pi_6
Pi_7
P0
P1
P2
P3
P4
P6
(3)
(1,2)
Port Pi_0 direction bit
Port Pi_1 direction bit
Port Pi_2 direction bit
Port Pi_3 direction bit
Port Pi_4 direction bit
Port Pi_5 direction bit
Port Pi_6 direction bit
Port Pi_7 direction bit
Port Pi_0 bit
Port Pi_1 bit
Port Pi_2 bit
Port Pi_3 bit
Port Pi_4 bit
Port Pi_5 bit
Port Pi_6 bit
Port Pi_7 bit
(1,2)
Address
Bit Name
Address
Bit Name
00EAh
00E2h
00E3h
00E6h
00E7h
00EEh
00E0h
00E1h
00E4h
00E5h
00E8h
00ECh
0 : Input mode
1 : Output mode
The pin level on any I/O port w hich is set
for input mode can be read by reading the
corresponding bit in this register. The pin
level on any I/O port w hich is set for
output mode can be controlled by w riting
to the corresponding bit in this register.
0 : “L” level
1 : “H” level
(functions as an input port)
(functions as an output port)
Indeterminate
Indeterminate
Indeterminate
Indeterminate
Indeterminate
Indeterminate
After Reset
After Reset
Function
Function
00h
00h
00h
00h
00h
00h
7. Programmable I/O Ports
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW