R5F2121AJFP#U0 Renesas Electronics America, R5F2121AJFP#U0 Datasheet - Page 172

• 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 14.24
The above applies to the following conditions.
TOSSTF bit in TRBOCR
TSTART bit in TRBCR
TRBPRE = 01h, TRBPR = 01h, TRBSC = 04h
INOSTG = 1 (INT0 one-shot trigger enabled)
INOSEG = 1 (edge trigger at rising edge)
Counter of timer RB
Timer RB prescaler
TRBIO pin output
TRBIOC register
underflow signal
IR bit in TRBIC
INT0 pin input
Count source
TOPL bit in
register
register
register
Operation Example of Programmable Wait One-Shot Generation Mode
1
0
1
0
1
0
1
0
1
0
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Set to 1 by program
Set to 0 by program
Count starts
Wait starts
01h
Set to 1 by setting 1 to TOSST bit in TRBOCR
register, or INT0 pin input trigger
(primary period)
Wait
Timer RB secondary reloads
Waveform output starts
00h
04h
03h
(secondary period)
Set to 0 when interrupt request is
acknowledged, or set by program
One-shot pulse
02h
01h
Set to 0 when
counting ends
Timer RB primary reloads
00h
Waveform output ends
14. Timers
01h