R4F24278NVFQU Renesas Electronics America, R4F24278NVFQU Datasheet - Page 837

• Manufacturer Part Number: R4F24278NVFQU
• Description: MCU 512K/48K 2.7-5.5V 144-LQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2400r

Specifications of R4F24278NVFQU

• Core Processor: H8S/2600
• Core Size: 16/32-Bit
• Speed: 33MHz
• Connectivity: EBI/EMI, I²C, IrDA, SCI, Smart Card, SPI, SSU, UART/USART
• Peripherals: DMA, POR, PWM, WDT
• Number Of I /o: 98
• Program Memory Size: 512KB (512K x 8)
• Program Memory Type: FLASH
• Eeprom Size: -
• Ram Size: 64K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 16x10b; D/A 2x8b
• Oscillator Type: External
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 144-LQFP
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

H8S/2427, H8S/2427R, H8S/2425 Group
12.4.6
In phase counting mode, the phase difference between two external clock inputs is detected and
TCNT is incremented/decremented accordingly. This mode can be set for channels 1, 2, 4, 5, 7, 8,
10, and 11.
When phase counting mode is set, an external clock is selected as the counter input clock and
TCNT operates as an up/down-counter regardless of the setting of bits TPSC2 to TPSC0 and bits
CKEG1 and CKEG0 in TCR. However, the functions of bits CCLR1 and CCLR0 in TCR, and of
TIOR, TIER, and TGR are valid, and input capture/compare match and interrupt functions can be
used.
This can be used for two-phase encoder pulse input.
When overflow occurs while TCNT is counting up, the TCFV flag in TSR is set; when underflow
occurs while TCNT is counting down, the TCFU flag is set.
The TCFD bit in TSR is the count direction flag. Reading the TCFD flag provides an indication of
whether TCNT is counting up or down.
Table 12.32 shows the correspondence between external clock pins and channels.
Table 12.32 Clock Input Pins in Phase Counting Mode
REJ09B0565-0100 Rev. 1.00
Jul 22, 2010
Unit
0
1
Channels
When channel 1 or 5 is set to phase counting mode
When channel 2 or 4 is set to phase counting mode
When channel 7 or 11 is set to phase counting mode
When channel 8 or 10 is set to phase counting mode
Phase Counting Mode
Section 12 16-Bit Timer Pulse Unit (TPU)
A-Phase
TCLKA
TCLKC
TCLKG
TCLKE
External Clock Pins
B-Phase
TCLKB
TCLKD
TCLKF
TCLKH
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