R5F21162SP#U0 Renesas Electronics America, R5F21162SP#U0 Datasheet - Page 257

• Manufacturer Part Number: R5F21162SP#U0
• Description: IC R8C MCU FLASH 8K 20SSOP
• Manufacturer: Renesas Electronics America
• Series: M16C™ M16C/R8C/Tiny/16r

Specifications of R5F21162SP#U0

• Core Processor: R8C
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: I²C, SIO, UART/USART
• Peripherals: LED, POR, Voltage Detect, WDT
• Number Of I /o: 13
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 4x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 20-SSOP
• For Use With: R0K521134S000BE - KIT EVAL STARTER FOR R8C/13
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

R8C/16 Group, R8C/17 Group
Rev.2.10
REJ09B0169-0210
20.4.3
20.4.4
Access the TC, TM0 and TM1 registers in 16-bit units.
The TC register can be read in 16-bit units. This prevents the timer value from being updated
between the low-order byte and high-order byte are being read.
Example (when Timer C is read):
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Jan 19, 2006
Do not rewrite the TZMOD0 to TZMOD1 bits and the TZS bit simultaneously.
In programmable one-shot generation mode and programmable wait one-shot generation mode,
when setting the TZS bit in the TZMR register to “0” (stops counting) or setting the TZOS bit in
the TZOC register to “0” (stops one-shot), the timer reloads the value of reload register and stops.
Therefore, read the timer count value in programmable one-shot generation mode and
programmable wait one-shot generation mode before the timer stops.
The TZS bit in the TZMR register has a function to instruct Timer Z to start or stop counting, and
a function to indicate the count starts or stops.
“0” (count stops) can be read until the following count source is applied after “1” (count starts) is
written to the TZS bit while the count is being stopped. If the following count source is applied, “1”
can be read from the TZS bit. Do not access registers associated with Timer Z (TZMR, PREZ,
TZSC, TZPR, TZOC, PUM, TCSC, TZIC registers) except for the TZS bit until “1” can be read
from the TZS bit. The count starts at the following count source after the TZS bit is set to “1”.
Also, when writing “0” (count stops) to the TZS bit during the count, Timer Z stops counting at the
following count source.
“1” (count starts) can be read by reading the TZS bit until the count stops after writing “0” to the
TZS bit. Do not access registers associated with Timer Z other than the TZS bit until “0” can be
read by the TZS bit after writing “0” to the TZS bit.
MOV.W
Timer Z
Timer C
0090H,R0
Page 242 of 254
;Read out timer C
20. Precautions