HD6473847RHV Datasheet, PDF (253/546 Pages) Renesas Technology Corp – Renesas 8-Bit Single-Chip Microcomputer H8 Family / H8/300L Super Low Power Series

Section 9 Timers
9.3 Timer F
The timer F has a 16-bit timer having an output compare function. The timer F also provides for
counter resetting, interrupt request generation, toggle output, etc., using compare match signals.
Thus, it can be applied to various systems. The timer F can also be used as two independent 8-bit
timers (timer FH and timer FL). Figure 9.2 shows a block diagram of the timer F.
9.3.1 Features
• Choice of four internal clock sources (φ/32, φ/16, φ/4, and φ_W/4)
• Toggle output function
Toggle output is performed to the TMOFH pin (TMOFL pin) using a single compare match
signal.
The initial value of toggle output can be set.
• Counter resetting by a compare match signal
• Two interrupt sources: One compare match, one overflow
• Choice of 16-bit or 8-bit mode by settings of bits CKSH2 to CKSH0 in TCRF
• Can operate in watch mode, subactive mode, and subsleep mode
When φ_W/4 is selected as an internal clock, the timer F can operate in watch mode, subactive
mode, and subsleep mode.
• Use of module standby mode enables this module to be placed in standby mode independently
when not used. (For details, refer to section 5.4, Module Standby Function.)
Rev. 7.00 Mar. 08, 2010 Page 221 of 510
REJ09B0024-0700