R5F21274SDFP#U0 Renesas Electronics America, R5F21274SDFP#U0 Datasheet - Page 266
R5F21274SDFP#U0
Manufacturer Part Number
R5F21274SDFP#U0
Description
IC R8C/27 MCU FLASH 32LQFP
Manufacturer
Renesas Electronics America
Series
R8C/2x/27r
Datasheet
1.R5F21272SDFPU0.pdf
(487 pages)
Specifications of R5F21274SDFP#U0
Core Processor
R8C
Core Size
16/32-Bit
Speed
20MHz
Connectivity
I²C, LIN, SIO, SSU, UART/USART
Peripherals
LED, POR, Voltage Detect, WDT
Number Of I /o
25
Program Memory Size
16KB (16K x 8)
Program Memory Type
FLASH
Ram Size
1K x 8
Voltage - Supply (vcc/vdd)
2.2 V ~ 5.5 V
Data Converters
A/D 12x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
32-LQFP
For Use With
R0K521276S000BE - KIT DEV RSK-R8C/26-29R0E521000EPB00 - PROBE EMULATOR FOR PC7501
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
R5F21274SDFP#U0R5F21274SDFP#V2
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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R8C/26 Group, R8C/27 Group
Rev.2.10
REJ09B0278-0210
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 U1PINSEL, TXD1SEL and TXD1EN in the PMR register.
1. The UART1 pins can be selected by using bits U1PINSEL, 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
10b
Registers PINSR1 and PMR
b1
b0
b0
UART1SEL0
UART1SEL1
Bit Symbol
U1PINSEL
TXD1SEL
Bit Symbol
INT1SEL
TXD1EN
(b2-b1)
SSISEL
Symbol
IICSEL
(b7-b3)
Symbol
PINSR1
PMR
Page 247 of 453
(b2)
—
Pin Function
P3_7(TXD1)
P3_7(RXD1)
P0_0(TXD1)
P3_7(TXD1)
P4_5(RXD1)
P3_6(TXD1)
P3_6(RXD1)
P0_0(TXD1)
—
—
_____
INT1
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
pin select bit
2
C bus pin sw itch bit
U1PINSEL bit
Address
Bit Name
Address
Bit Name
×
0
1
×
0
00F5h
00F8h
(1)
(1)
PMR Register
(1)
TXD1SEL bit
(1)
×
1
1
×
×
1
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 : P3_6(TXD1/RXD1)
1 1 : Do not set.
0 : P1_5, P1_7
1 : P3_6
0 : P3_3
1 : P1_6
0 : P0_0
1 : P3_6, P3_7
0 : Programmable I/O port
1 : TXD1
0 : RXD1
1 : TXD1
0 : Selects SSU function
1 : Selects I
TXD1EN bit
1
0
×
×
1
0
×
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
—
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