R5F2121AJFP#U0 Renesas Electronics America, R5F2121AJFP#U0 Datasheet - Page 457

• 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 21.4
TRDGRB0 register
TRDGRA1 register
TRDGRB1 register
TRDSR0 register
Count value in TRD0
IMFA bit in
Setting value in
•
When the value in the TRDGRA0 register is assumed as m, the TRD0 register counts order of m - 1, m, m
+ 1, m, m - 1 when changing from increment to decrement.
When changing from m to m + 1, the IMFA bit is set to 1. Also, the CMD1 to CMD0 bits in the TRDFCR
register are set to 11b (complementary PWM mode, buffer data transferred by the compare match in the
TRD0 and TRDGRA0 registers), the content in the buffer register (TRDGRD0, TRDGRC1, TRDGRD1) is
transferred to the general register (TRDGRB0, TRDGRA1, TRDGRB1).
For the order of m + 1, m, m - 1 operation, the IMFA bit remains unchanged and data are not transferred to
the register such as the TRDGRA0 register.
register m
TRDGRA0
Complementary PWM Mode
Operation at Compare Match between Registers TRD0 and TRDGRA0 in
register
1
0
Set to 0 by a program
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Transferred from
buffer register
m + 1
No change
Not transferred from buffer register
When the CMD1 to CMD0 bits in the
TRDFCR register are set to 11b.
(Transfer from the buffer register to the
general register at the compare match
of the TRD0 register and TRDGRA0
register)
21. Usage Notes