R5F21334CNFP#U0 Renesas Electronics America, R5F21334CNFP#U0 Datasheet - Page 279

MCU 1KB FLASH 16K ROM 32-LQFP

R5F21334CNFP#U0

Manufacturer Part Number
R5F21334CNFP#U0
Description
MCU 1KB FLASH 16K ROM 32-LQFP
Manufacturer
Renesas Electronics America
Series
R8C/3x/33Cr
Datasheet

Specifications of R5F21334CNFP#U0

Core Processor
R8C
Core Size
16/32-Bit
Speed
20MHz
Connectivity
I²C, LIN, SIO, SSU, UART/USART
Peripherals
POR, PWM, Voltage Detect, WDT
Number Of I /o
27
Program Memory Size
16KB (16K x 8)
Program Memory Type
FLASH
Ram Size
1.5K x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.5 V
Data Converters
A/D 12x10b; D/A 2x8b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 85°C
Package / Case
32-LQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-

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R8C/33C Group
REJ09B0570-0100 Rev.1.00 Dec. 14, 2009
Page 249 of 589
19.3
Figure 19.2
19.3.1
Table 19.5
f1, f2, f4, f8, f32
fOCO40M
fOCO-F
External signal input
to TRCCLK pin
Count Source
The method of selecting the count source is common to all modes.
Table 19.5 lists the Count Source Selection, and Figure 19.2 shows a Count Source Block Diagram.
The pulse width of the external clock input to the TRCCLK pin should be three cycles or more of the timer RC
operation clock (refer to Table 19.1 Timer RC Operation Clock).
To select fOCO40M or fOCO-F as the count source, set the FRA00 bit in the FRA0 register set to 1 (high-speed
on-chip oscillator on), and then set bits TCK2 to TCK0 in the TRCCR1 register to 110b (fOCO40M) or 111b
(fOCO-F).
fOCO40M
TRCCLK
Common Items for Multiple Modes
fOCO-F
Count Source
f32
f1
f2
f4
f8
Count Source Selection
Count Source Block Diagram
TCK2 to TCK0: Bits in TRCCR1 register
Count source selected using bits TCK2 to TCK0 in TRCCR1 register
FRA00 bit in FRA0 register set to 1 (high-speed on-chip oscillator on)
Bits TCK2 to TCK0 in TRCCR1 register are set to 110b (fOCO40M)
Bits TCK2 to TCK0 in TRCCR1 register are set to 111b (fOCO-F)
Bits TCK2 to TCK0 in TRCCR1 register are set to 101b (count source is rising edge
of external clock) and the corresponding direction bit in the corresponding direction
register is set is set to 0 (input mode)
= 011b
= 100b
= 010b
= 101b
TCK2 to TCK0
= 001b
= 110b
= 000b
Selection Method
= 111b
Count source
TRC register
19. Timer RC

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