R5F211B1SP#U0 Renesas Electronics America, R5F211B1SP#U0 Datasheet - Page 158

• Manufacturer Part Number: R5F211B1SP#U0
• Description: IC R8C MCU FLASH 4K 20SSOP
• Manufacturer: Renesas Electronics America
• Series: M16C™ M16C/R8C/Tiny/1Br

Specifications of R5F211B1SP#U0

• Core Processor: R8C
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: I²C, SIO, SSU, UART/USART
• Peripherals: LED, POR, Voltage Detect, WDT
• Number Of I /o: 13
• Program Memory Size: 4KB (4K x 8)
• Program Memory Type: FLASH
• Ram Size: 384 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: R0K5211B4S001BE - KIT STARTER FOR R8C/18191A1BR0K5211B4S000BE - KIT DEV EVALUATION R8C/1BR0E521174CPE10 - EMULATOR COMPACT R8C/18/19/1
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

R8C/1A Group, R8C/1B Group
Rev.1.30
REJ09B0252-0130
14.2.5
• Timer Z stops counting after a reset. Set the values in the timer and prescaler before the count starts.
• Even if the prescaler and timer are read out in 16-bit units, these registers are read 1 byte at a time by the
• Do not rewrite bits TZMOD0 to TZMOD1, and the TZS bit simultaneously.
• In programmable one-shot generation mode, and programmable wait one-shot generation mode, when
• The TZS bit in the TZMR register has a function to instruct timer Z to start or stop counting and a function
Dec 08, 2006
MCU. Consequently, the timer value may be updated during the period when these two registers are being
read.
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 the reload register and stops. Therefore, in
programmable one-shot generation mode and programmable wait one-shot generation mode read the timer
count value before the timer stops.
to indicate that the count has started or stopped.
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. After writing 1 to the TZS bit, do not access registers associated with timer Z (registers TZMR,
PREZ, TZSC, TZPR, TZOC, PUM, TCSC, and TZIC) 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, after 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. After
writing 0 to the TZS bit, do not access registers associated with timer Z except for the TZS bit, until 0 can
be read from the TZS bit.
Notes on Timer Z
Page 140 of 315
14. Timers