R5F21257SNFP#U0 Renesas Electronics America, R5F21257SNFP#U0 Datasheet - Page 171

• Manufacturer Part Number: R5F21257SNFP#U0
• Description: IC R8C/25 MCU FLASH 52LQFP
• Manufacturer: Renesas Electronics America
• Series: R8C/2x/25r

Specifications of R5F21257SNFP#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: 48KB (48K x 8)
• Program Memory Type: FLASH
• Ram Size: 2.5K x 8
• Voltage - Supply (vcc/vdd): 2.2 V ~ 5.5 V
• Data Converters: A/D 12x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 52-LQFP
• For Use With: R0K521256S000BE - KIT EVAL STARTER FOR R8C/25
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

R8C/24 Group, R8C/25 Group
Rev.3.00
REJ09B0244-0300
Figure 14.14
Timer RB Mode Register
Timer RB I/O Control Register
b7 b6 b5 b4
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).
Feb 29, 2008
b3 b2
b3 b2
Registers TRBIOC and TRBMR
b1 b0
b1 b0
Bit Symbol
Bit Symbol
TCKCUT
INOSTG
INOSEG
TRBIOC
(b7-b4)
Symbol
TOCNT
Symbol
TRBMR
TMOD0
TMOD1
TWRC
TCK0
TCK1
TOPL
(b2)
(b6)
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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)
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
Function varies depending on operating mode.
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
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