R5F211B1SP#U0 Renesas Electronics America, R5F211B1SP#U0 Datasheet - Page 131

• 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
14.1.2
Table 14.3
NOTE:
Count sources
Count operations
Divide ratio
Count start condition
Count stop condition
Interrupt request
generation timing
INT10/CNTR00
pin function
CNTR0 pin function
Read from timer
Write to timer
Select functions
1. The level of the output pulse becomes the level when the pulse output starts when the TX register is
In pulse output mode, the internally generated count source is counted, and a pulse with inverted polarity is
output from the CNTR0 pin each time the timer underflows (refer to Table 14.3 Pulse Output Mode
Specifications). Figure 14.5 shows the TXMR Register in Pulse Output Mode.
written to.
Dec 08, 2006
Item
Pulse Output Mode
Pulse Output Mode Specifications
Page 113 of 315
f1, f2, f8, fRING
• Decrement
• When the timer underflows, the contents of the reload register are reloaded
1/(n+1)(m+1) n: value set in PREX register, m: value set in TX register
1 (count starts) is written to the TXS bit in the TXMR register.
0 (count stops) is written to the TXS bit in the TXMR register.
When timer X underflows [timer X interrupt].
Pulse output
Programmable I/O port, or inverted output of CNTR0
The count value can be read out by reading registers TX and PREX.
• When registers TX and PREX are written while the count is stopped, values
• When registers TX and PREX are written during the count, the value is written
• INT1/CNTR0 signal polarity switch function
• Inverted pulse output function
and the count is continued.
are written to both the reload register and counter.
to each reload register of registers TX and PREX at the following count source
input, the data is transferred to the counter at the second count source input,
and the count re-starts at the third count source input.
The R0EDG bit can select the polarity level when the pulse output starts.
The pulse which inverts the polarity of the CNTR0 output can be output from
the CNTR0 pin (selected by TXOCNT bit).
Specification
14. Timers
(1)