SH7101 datasheet(183/560 Pages) RENESAS

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Section 8 Multifunction Timer Pulse Unit (MTU)

Rev.1.00 Sep. 18, 2008 Page 149 of 522

REJ09B0069-0100

Bit

Bit Name

Initial

value

R/W

Description

TGFB

R/(W)

Input Capture/Output Compare Flag B

Status flag that indicates the occurrence of TGRB input

capture or compare match. Only 0 can be written, for flag

clearing.

[Setting conditions]

• When TCNT = TGRB and TGRB is functioning as

output compare register

• When TCNT value is transferred to TGRB by input

capture signal and TGRB is functioning as input

capture register

[Clearing condition]

• When 0 is written to TGFB after reading TGFB = 1

TGFA

R/(W)

Input Capture/Output Compare Flag A

Status flag that indicates the occurrence of TGRA input

capture or compare match. Only 0 can be written, for flag

clearing.

[Setting conditions]

• When TCNT = TGRA and TGRA is functioning as

output compare register

• When TCNT value is transferred to TGRA by input

capture signal and TGRA is functioning as input

capture register

[Clearing condition]

• When 0 is written to TGFA after reading TGFA = 1

8.3.6

Timer Counter (TCNT)

The TCNT registers are 16-bit readable/writable counters. The MTU has five TCNT counters, one

for each channel. The initial value is H'0000.

Access to TCNT in 8-bit units is not allowed. Applications must always access TCNT in 16-bit

units. Note that TCNT is initialized to H'0000 by a reset.

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