HD64F7047 datasheet(333/764 Pages) RENESAS

333 / 764 page

Rev. 2.00, 09/04, page 293 of 720

Operation when Error Occurs during Phase Counting Mode Operation, and Operation is

Restarted in Normal Mode: Figure 10.101 shows an explanatory diagram of the case where an

error occurs in phase counting mode and operation is restarted in normal mode after re-setting.

RESET

TMDR

(PCM)

TIOR

(1 init

0 out)

TSTR

(1)

PFC

(MTU)

Match

Error

occurs

PFC

(PORT)

TSTR

(0)

TMDR

(normal)

TIOR

(1 init

0 out)

PFC

(MTU)

TSTR

(1)

MTU module

output

TIOC*A

TIOC*B

Port output

PEn

n=0 to 15

High-Z

Figure 10.101 Error Occurrence in Phase Counting Mode, Recovery in Normal Mode

After a reset, MTU output is low and ports are in the high-impedance state.

Set phase counting mode.

Initialize the pins with TIOR. (The example shows initial high output, with low output on

compare-match occurrence.)

Set MTU output with the PFC.

The count operation is started by TSTR.

Output goes low on compare-match occurrence.

An error occurs.

Set port output with the PFC and output the inverse of the active level.

The count operation is stopped by TSTR.

10. Set in normal mode.

11. Initialize the pins with TIOR.

12. Set MTU output with the PFC.

13. Operation is restarted by TSTR.

HD64F7047 Datasheet(PDF) 333 Page - Renesas Technology Corp

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