R5F21272SDFP#U0 Renesas Electronics America, R5F21272SDFP#U0 Datasheet - Page 182

IC R8C/27 MCU FLASH 32LQFP

R5F21272SDFP#U0

Manufacturer Part Number
R5F21272SDFP#U0
Description
IC R8C/27 MCU FLASH 32LQFP
Manufacturer
Renesas Electronics America
Series
R8C/2x/27r
Datasheet

Specifications of R5F21272SDFP#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
8KB (8K x 8)
Program Memory Type
FLASH
Ram Size
512 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
-

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R8C/26 Group, R8C/27 Group
Rev.2.10
REJ09B0278-0210
Figure 14.16
14.2.1
Table 14.7
Count sources
Count operations
Divide ratio
Count start condition
Count stop conditions
Interrupt request
generation timing
TRBO pin function
INT0 pin function
Read from timer
Write to timer
Timer RB I/O Control Register
b7 b6 b5 b4
In timer mode, a count source which is internally generated or timer RA underflows are counted (refer to Table
14.7 Specifications of Timer Mode). Registers TRBOCR and TRBSC are not used in timer mode.
Figure 14.16 shows the TRBIOC Register in Timer Mode.
Sep 26, 2008
Timer Mode
Item
b3 b2
0 0
Specifications of Timer Mode
TRBIOC Register in Timer Mode
b1 b0
0 0
Bit Symbol
INOSTG
INOSEG
TRBIOC
(b7-b4)
Symbol
TOCNT
TOPL
Page 163 of 453
f1, f2, f8, timer RA underflow
• Decrement
• When the timer underflows, it reloads the reload register contents before the
1/(n+1)(m+1)
1 (count starts) is written to the TSTART bit in the TRBCR register.
• 0 (count stops) is written to the TSTART bit in the TRBCR register.
• 1 (count forcibly stop) is written to the TSTOP bit in the TRBCR register.
When timer RB underflows [timer RB interrupt]
Programmable I/O port
Programmable I/O port or INT0 interrupt input
The count value can be read out by reading registers TRBPR and TRBPRE.
• When registers TRBPRE and TRBPR are written while the count is stopped,
• When registers TRBPRE and TRBPR are written to while count operation is
count continues (when timer RB underflows, the contents of timer RB primary
reload register is reloaded).
values are written to both the reload register and counter.
in progress:
If the TWRC bit in the TRBMR register is set to 0, the value is written to both
the reload register and the counter.
If the TWRC bit is set to 1, the value is written to the reload register only.
(Refer to 14.2.1.1 Timer Write Control during Count Operation.)
n: setting value in TRBPRE register, m: setting value in TRBPR register
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.
Address
Bit Name
010Ah
Set to 0 in timer mode.
Specification
After Reset
Function
00h
14. Timers
RW
RW
RW
RW
RW

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