DS72030W200FPV Renesas Electronics America, DS72030W200FPV Datasheet - Page 577

Manufacturer Part Number

DS72030W200FPV

MPU, 32BIT, SH7203, ROMLESS, 240QFP

Manufacturer

Renesas Electronics America

Program Memory Size

Digital Ic Case Style

Supply Voltage Range

1.1V To 1.3V

Operating Temperature Range

-20Â°C To +85Â°C

Rohs Compliant

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

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

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 11.45 shows the correspondence between external clock pins and channels.

Table 11.45 Phase Counting Mode Clock Input Pins

Figure 11.29 shows an example of the phase counting mode setting procedure.

When channel 1 is set to phase counting mode

When channel 2 is set to phase counting mode

Example of Phase Counting Mode Setting Procedure

Phase Counting Mode

Figure 11.29 Example of Phase Counting Mode Setting Procedure

Select phase counting

Phase counting mode

[1] Select phase counting mode with bits

[2] Set the CST bit in TSTR to 1 to start

Section 11 Multi-Function Timer Pulse Unit 2 (MTU2)

MD3 to MD0 in TMDR.

the count operation.

Rev. 3.00 Sep. 28, 2009 Page 545 of 1650

External Clock Pins

REJ09B0313-0300