R5F21274SDFP#U0 Renesas Electronics America, R5F21274SDFP#U0 Datasheet - Page 165

• Manufacturer Part Number: R5F21274SDFP#U0
• Description: IC R8C/27 MCU FLASH 32LQFP
• Manufacturer: Renesas Electronics America
• Series: R8C/2x/27r

Specifications of R5F21274SDFP#U0

• Core Processor: R8C
• Core Size: 16/32-Bit
• Speed: 20MHz
• Connectivity: I²C, LIN, SIO, SSU, UART/USART
• Peripherals: LED, POR, Voltage Detect, WDT
• Number Of I /o: 25
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: FLASH
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 2.2 V ~ 5.5 V
• Data Converters: A/D 12x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 32-LQFP
• For Use With: R0K521276S000BE - KIT DEV RSK-R8C/26-29R0E521000EPB00 - PROBE EMULATOR FOR PC7501
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

R8C/26 Group, R8C/27 Group
Rev.2.10
REJ09B0278-0210
Figure 14.4
14.1.1
Table 14.2
NOTE:
Count sources
Count operations
Divide ratio
Count start condition
Count stop conditions
Interrupt request
generation timing
INT1/TRAIO pin function Programmable I/O port, or INT1 interrupt input
TRAO pin function
Read from timer
Write to timer
Timer RA I/O Control Register
b7 b6 b5 b4 b3 b2
1. For J, K version, fC32 cannot be selected.
In this mode, the timer counts an internally generated count source (refer to Table 14.2 Specifications of
Timer Mode).
Figure 14.4 shows the TRAIOC Register in Timer Mode.
0 0
Sep 26, 2008
Timer Mode
Item
0
Specifications of Timer Mode
TRAIOC Register in Timer Mode
b1 b0
0
0
Bit Symbol
TEDGSEL
TRAIOC
TOENA
TIOSEL
(b7-b6)
Symbol
TOPCR
TIPF0
TIPF1
Page 146 of 453
—
f1, f2, f8, fOCO, fC32
• Decrement
• When the timer underflows, the contents of the reload register are reloaded
1/(n+1)(m+1)
1 (count starts) is written to the TSTART bit in the TRACR register.
• 0 (count stops) is written to the TSTART bit in the TRACR register.
• 1 (count forcibly stops) is written to the TSTOP bit in the TRACR register.
When timer RA underflows [timer RA interrupt].
Programmable I/O port
The count value can be read by reading registers TRA and TRAPRE.
• When registers TRAPRE and TRA are written while the count is stopped,
• When registers TRAPRE and TRA are written during the count, values are
and the count is continued.
values are written to both the reload register and counter.
written to the reload register and counter (refer to 14.1.1.1 Timer Write
Control during Count Operation).
n: Value set in TRAPRE register, m: Value set in TRA register
TRAIO polarity sw itch bit
TRAIO output control bit
TRAO output enable bit
_____
INT1
TRAIO input filter select bits Set to 0 in timer mode.
Nothing is assigned. If necessary, set to 0.
When read, the content is 0.
/TRAIO select bit
Address
Bit Name
0101h
(1)
Set to 0 in timer mode.
0 : INT1
1 : INT1
_____
_____
Specification
/TRAIO pin (P1_7)
/TRAIO pin (P1_5)
After Reset
Function
00h
14. Timers
RW
RW
RW
RW
RW
RW
—