HD6417144F50V Renesas Electronics America, HD6417144F50V Datasheet - Page 322

• Manufacturer Part Number: HD6417144F50V
• Description: IC SUPERH MCU ROMLESS 112QFP
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7144r

Specifications of HD6417144F50V

• Core Processor: SH-2
• Core Size: 32-Bit
• Speed: 50MHz
• Connectivity: EBI/EMI, I²C, SCI
• Peripherals: DMA, POR, PWM, WDT
• Number Of I /o: 74
• Program Memory Type: ROMless
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 112-QFP
• For Use With: HS0005KCU11H - EMULATOR E10A-USB H8S(X),SH2(A)EDK7145 - DEV EVALUATION KIT SH7145
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -

11.
11.4.6
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 and 2.
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 TPSC0 to TPSC2 and bits
CKEG0 and CKEG1 in TCR. However, the functions of bits CCLR0 and CCLR1 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.
If overflow occurs when TCNT is counting up, the TCFV flag in TSR is set; if underflow occurs
when TCNT is counting down, the TCFU flag is set.
The TCFD bit in TSR is the count direction flag. Reading the TCFD flag reveals whether TCNT is
counting up or down.
Table 11.32 shows the correspondence between external clock pins and channels.
Table 11.32 Phase Counting Mode Clock Input Pins
Example of Phase Counting Mode Setting Procedure: Figure 11.24 shows an example of the
phase counting mode setting procedure.
Rev.4.00 Mar. 27, 2008 Page 276 of 882
REJ09B0108-0400
Channels
When channel 1 is set to phase counting mode
When channel 2 is set to phase counting mode
Multi-Function Timer Pulse Unit (MTU)
Phase Counting Mode
Figure 11.24
<Phase counting mode>
Select phase counting
Phase counting mode
Start count
mode
Example of Phase Counting Mode Setting Procedure
[1]
[2]
[1] Select phase counting mode with bits
[2] Set the CST bit in TSTR to 1 to start
MD3 to MD0 in TMDR.
the count operation.
A-Phase
TCLKA
TCLKC
External Clock Pins
B-Phase
TCLKB
TCLKD