R5F21237DFP#U0 Renesas Electronics America, R5F21237DFP#U0 Datasheet - Page 178

• Manufacturer Part Number: R5F21237DFP#U0
• Description: IC R8C/23 MCU FLASH 48-LQFP
• Manufacturer: Renesas Electronics America
• Series: R8C/2x/23r

Specifications of R5F21237DFP#U0

• Core Processor: R8C
• Core Size: 16/32-Bit
• Speed: 20MHz
• Connectivity: CAN, I²C, LIN, SIO, SSU, UART/USART
• Peripherals: POR, Voltage Detect, WDT
• Number Of I /o: 41
• Program Memory Size: 48KB (48K x 8)
• Program Memory Type: FLASH
• Ram Size: 2.5K 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
• For Use With: RCDK8C - KIT DEV EVAL FOR CAN R8C/23R0K521237S000BE - KIT DEV RSK R8C/23R0E521237CPE00 - EMULATOR COMPACT R8C/20/21/22/23
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

R8C/22 Group, R8C/23 Group
Rev.2.00 Aug 20, 2008
REJ09B0251-0200
Figure 14.20
TSTART bit in TRBCR
The above applies to the following conditions.
Counter of timer RB
Timer RB prescaler
TOPL bit in TRBIO
TRBPRE = 01h, TRBPR = 01h, TRBSC = 02h
TRBIOC register TOCNT = 0 (timer RB waveform is output from the TRBO pin)
TRBO pin output
underflow signal
IR bit in TRBIC
Count source
Operation Example of Timer RB in Programmable Waveform Generation Mode
register
register
register
Initial output is the same level
as during secondary period.
1
0
1
0
1
0
1
0
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Waveform output starts
Set to 1 by program
Set to 0 by program
01h
Primary period
Timer RB secondary reloads
00h
Waveform output inverts
02h
Secondary period
01h
Timer RB primary reloads
00h
Waveform output starts
01h
Primary period
Set to 0 when interrupt
request is acknowledged,
or set by program
00h
02h
14. Timers