R5F21238DFP#U0 Renesas Electronics America, R5F21238DFP#U0 Datasheet - Page 171

• Manufacturer Part Number: R5F21238DFP#U0
• Description: IC R8C/23 MCU FLASH 48-LQFP
• Manufacturer: Renesas Electronics America
• Series: R8C/2x/23r

Specifications of R5F21238DFP#U0

• Core Size: 16/32-Bit
• Program Memory Size: 64KB (64K x 8)
• Peripherals: POR, Voltage Detect, WDT
• Core Processor: R8C
• Speed: 20MHz
• Connectivity: CAN, I²C, LIN, SIO, SSU, UART/USART
• Number Of I /o: 41
• Program Memory Type: FLASH
• Ram Size: 3K 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
• No. Of I/o's: 41
• Ram Memory Size: 3KB
• Cpu Speed: 20MHz
• No. Of Timers: 4
• Digital Ic Case Style: LQFP
• Embedded Interface Type: CAN, I2C, UART
• Rohs Compliant: Yes
• Cpu Family: R8C
• Device Core Size: 16b
• Frequency (max): 20MHz
• Interface Type: I2C/UART
• Total Internal Ram Size: 3KB
• # I/os (max): 41
• Number Of Timers - General Purpose: 5
• Operating Supply Voltage (typ): 3.3/5V
• Operating Supply Voltage (max): 5.5V
• Operating Supply Voltage (min): 3V
• On-chip Adc: 12-chx10-bit
• Instruction Set Architecture: CISC
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 48
• Package Type: LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: RCDK8C - KIT DEV EVAL FOR CAN R8C/23R0K521237S000BE - KIT DEV RSK R8C/23R0E521237CPE00 - EMULATOR COMPACT R8C/20/21/22/23
• Eeprom Size: -
• Lead Free Status / Rohs Status: Compliant

R8C/22 Group, R8C/23 Group
Rev.2.00 Aug 20, 2008
REJ09B0251-0200
Figure 14.15
Timer RB I/O Control Register
Timer RB Mode Register
b7 b6 b5 b4 b3 b2
b7 b6 b5 b4
NOTES:
1.
2.
Change bits TMOD1 and TMOD0; TCK1 and TCK0; and TCKCUT w hen both the TSTART and TCSTF bits in the TRBCR
register set to 0 (count stops).
The TWRC bit can be set to either 0 or 1 in timer mode. In programmable w aveform generation mode, programmable
one-shot generation mode, or programmable w ait one-shot generation mode, the TWRC bit must be set to 1 (w rite to
reload register only).
b3 b2
Registers TRBIOC and TRBMR
b1 b0
b1 b0
Bit Symbol
Bit Symbol
INOSTG
INOSEG
TCKCUT
TRBIOC
(b7-b4)
Symbol
TOCNT
Symbol
TRBMR
TMOD0
TMOD1
TWRC
TOPL
Page 149 of 501
TCK0
TCK1
(b2)
(b6)
—
—
—
Timer RB output level select
bit
Timer RB output sw itch bit
One-shot trigger control bit
One-shot trigger polarity
select bit
Nothing is assigned. If necessary, set to 0.
When read, the content is 0.
Timer RB operating mode
select bits
Nothing is assigned. If necessary, set to 0.
When read, the content is 0.
Timer RB w rite control bit
Timer RB count source
select bits
Nothing is assigned. If necessary, set to 0.
When read, the content is 0.
Timer RB count source
cutoff bit
(1)
Address
Bit Name
Address
Bit Name
(1)
(1)
010Ah
010Bh
(2)
Function varies depending on operating mode
b1 b0
0 0 : Timer mode
0 1 : Programmable w aveform generation mode
1 0 : Programmable one-shot generation mode
1 1 : Programmable w ait one-shot generation mode
b5 b4
0 0 : f1
0 1 : f8
1 0 : Timer RA underflow
1 1 : f2
0 : Write to reload register and counter
1 : Write to reload register only
0 : Provides count source
1 : Cuts off count source
After Reset
After Reset
Function
Function
00h
00h
14. Timers
RW
RW
RW
RW
RW
—
RW
RW
RW
RW
RW
RW
RW
—
—