R5F2121AJFP#U0 Renesas Electronics America, R5F2121AJFP#U0 Datasheet - Page 158

• 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 14.16
Timer RB Secondary Register
Timer RB Primary Register
Timer RB Prescaler Register
b7
NOTES:
b7
NOTES:
b7
NOTE:
1.
2.
3.
4. To w rite to the TRBSC register, perform the follow ing steps.
1.
2. When the TSTOP bit in the TRBCR register is set to 1, the TRBPR register is set to FFh.
1. When the TSTOP bit in the TRBCR register is set to 1, the TRBPRE register is set to FFh.
Each value in the TRBPR register and TRBSC register is reloaded to the counter alternately and counted.
The count value can be read out by reading the TRBPR register even w hen the secondary period is being counted.
When the TSTOP bit in the TRBCR register is set to 1, the TRBSC register is set to FFh.
(1) Write the value to the TRBSC register.
(2) Write the value to the TRBPR register. (If the value does not change, w rite the same value second time.)
Each value in the TRBPR register and TRBSC register is reloaded to the counter alternately and counted.
Registers TRBPRE, TRBSC, and TRBPR
b0
b0
b0
Timer mode
Programmable w aveform
generation mode
Programmable one-shot
generation mode
Programmable w ait one-shot
generation mode
Timer mode
Programmable w aveform
generation mode
Programmable one-shot
generation mode
Programmable w ait one-shot
generation mode
Timer mode
Programmable w aveform
generation mode
Programmable one-shot
generation mode
Programmable w ait one-shot
generation mode
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(2)
(1)
TRBPRE
Symbol
TRBSC
Symbol
Symbol
TRBPR
Mode
Mode
Mode
(3,4)
Disable
Counts a timer RB prescaler underflow
Disable
Counts a timer RB prescaler underflow
(one-shot w idth is counted)
Counts a timer RB prescaler underflow
Counts a timer RB prescaler underflow
Counts a timer RB prescaler underflow
(one-shot w idth is counted)
Counts a timer RB prescaler underflow
(w ait period w idth is counted)
Counts an internal count source or a timer RA
underflow
Address
Address
Address
Function
Function
Function
010Dh
010Eh
010Ch
(1)
(1)
Setting Range
Setting Range
Setting Range
After Reset
After Reset
After Reset
00h to FFh
00h to FFh
00h to FFh
00h to FFh
00h to FFh
00h to FFh
00h to FFh
00h to FFh
00h to FFh
00h to FFh
00h to FFh
00h to FFh
FFh
FFh
FFh
14. Timers
WO
WO
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
—
—
(2)
(2)