R5F21256SNFP#ES Renesas Electronics America, R5F21256SNFP#ES Datasheet - Page 164

• Manufacturer Part Number: R5F21256SNFP#ES
• Description: MCU 2/5V 32K 52-LQFP ES SAMPLE
• Manufacturer: Renesas Electronics America
• Series: R8C/2x/25r

Specifications of R5F21256SNFP#ES

• Core Processor: R8C
• Core Size: 16/32-Bit
• Speed: 20MHz
• Connectivity: I²C, LIN, SIO, SSU, UART/USART
• Peripherals: POR, Voltage Detect, WDT
• Number Of I /o: 41
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 2K x 8
• Voltage - Supply (vcc/vdd): 2.2 V ~ 5.5 V
• Data Converters: A/D 12x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 52-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

R8C/24 Group, R8C/25 Group
Rev.3.00
REJ09B0244-0300
Figure 14.9
(TRAIO pin input)
Measured pulse
TRACR register
TRACR register
TRACR register
IR bit in TRAIC
TSTART bit in
• “H” level width of measured pulse is measured. (TEDGSEL = 1)
• TRAPRE = FFh
The above applies under the following conditions.
TEDGF bit in
TUNDF bit in
Feb 29, 2008
register
FFFFh
0000h
Operating Example of Pulse Width Measurement Mode
n
1
0
1
0
1
0
1
0
1
0
n = high level: the contents of TRA register, low level: the contents of TRAPRE register
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Set to 1 by program
Count start
Set to 0 when interrupt request is acknowledged, or set by program
Count stop
Count start
Set to 0 by program
Underflow
Set to 0 by program
Count stop
Count start
Period
14. Timers