Renesas SH7041 Series, Hardware Manual, Page: 350 / 923

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12.2.6 Timer Counters (TCNT)
The timer counters (TCNT) are 16-bit counters, with one for each channel, for a total of five.
The TCNT are initialized to H'0000 by a power-on reset and when in standby mode. Manual reset
does not initialize TCNT. Accessing the TCNT counters in 8-bit units is prohibited. Always access
in 16-bit units.
Channel Abbreviation Function
0 TCNT0 Increment counter
1 TCNT1 Increment/decrement counter
*
1
2 TCNT2 Increment/decrement counter
*
1
3 TCNT3 Increment/decrement counter
*
2
4 TCNT4 Increment/decrement counter
*
2
Notes:
*
1 Can only be used as an increment/decrement counter in phase counting mode, with
other channel overflow/underflow counting. It becomes an increment counter in all other
cases.
* 2 Can only be used as an increment counter in complementary PWM mode. It becomes
an increment counter in all other cases.
Bit: 15 14 13 12 11 10 9 8
Initial value: 0 0 0 0 0 0 0 0
R/W: R/W R/W R/W R/W R/W R/W R/W R/W
Bit: 7 6 5 4 3 2 1 0
Initial value: 0 0 0 0 0 0 0 0
R/W: R/W R/W R/W R/W R/W R/W R/W R/W