R5F21292SNSP#U0 Renesas Electronics America, R5F21292SNSP#U0 Datasheet - Page 256

• Manufacturer Part Number: R5F21292SNSP#U0
• Description: MCU 3/5V 16K+2K 20PIN-SSOP
• Manufacturer: Renesas Electronics America
• Series: M16C™ M16C/R8C/Tiny/29r

Specifications of R5F21292SNSP#U0

• Core Processor: R8C
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: I²C, LIN, SIO, SSU, UART/USART
• Peripherals: LED, POR, Voltage Detect, WDT
• Number Of I /o: 13
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 2.2 V ~ 5.5 V
• Data Converters: A/D 4x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 20-SSOP
• For Use With: R0K521276S000BE - KIT DEV RSK-R8C/26-29
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

R8C/28 Group, R8C/29 Group
Rev.2.10
REJ09B0279-0210
Figure 15.7
Pin Select Register 1
Port Mode Register
b7 b6 b5 b4 b3 b2
NOTE:
b7 b6 b5 b4
NOTE:
0 0 0 0
1. The UART1 pins can be selected by using bits TXD1SEL and TXD1EN in the PMR register.
1. The UART1 pins can be selected by using bits TXD1SEL and TXD1EN, and bits UART1SEL1 and UART1SEL0 in the
PINSR1 register.
×: 0 or 1
Sep 26, 2008
PINSR1 Register
UART1SEL0 bit
UART1SEL1,
b3 b2 b1
0
1
00b
01b
Registers PINSR1 and PMR
b1
b0
b0
0
UART1SEL0
UART1SEL1
Bit Symbol
U1PINSEL
TXD1SEL
Bit Symbol
TXD1EN
(b2-b1)
SSISEL
Symbol
IICSEL
(b7-b3)
Symbol
PINSR1
PMR
(b0)
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(b2)
—
—
Pin Function
P3_7(TXD1)
P3_7(RXD1)
P3_7(TXD1)
P4_5(RXD1)
—
—
Reserved bit
Nothing is assigned. If necessary, set to 0.
When read, the content is 0.
SSI pin select bit
TXD1 pin sw itch bit
Port/TXD1 pin sw itch bit
TXD1/RXD1 select bit
SSU / I
TXD1/RXD1 pin select bit
Reserved bit
Reserved bits
2
C bus pin sw itch bit
TXD1SEL bit
Address
Bit Name
Address
Bit Name
×
1
×
00F5h
00F8h
PMR Register
(1)
(1)
(1)
TXD1EN bit
(1)
1
0
×
Set to 1. When read, the content is 0.
Set to 0. When read, the content is 0.
b1 b0
0 0 : P3_7(TXD1/RXD1)
0 1 : P3_7(TXD1), P4_5(RXD1)
1 0 : Do not set.
1 1 : Do not set.
Set to 0.
0 : P3_3
1 : P1_6
Set to 1 to use UART1.
0 : Programmable I/O port
1 : TXD1
0 : RXD1
1 : TXD1
0 : Selects SSU function
1 : Selects I
2
C bus function
After Reset
After Reset
Function
Function
00h
00h
15. Serial Interface
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
—