SH7706 Datasheet, PDF (374/749 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperH™ RISC engine Family/SH7700 Series

Section 12 Timer Unit (TMU)
12.3.1 Timer Output Control Register (TOCR)
TOCR is an 8-bit read/write register that selects whether to use the external TCLK pin as an
external clock or an input capture control usage input pin, or an output pin for the on-chip RTC
output clock. TOCR is initialized to H'00 by a power-on reset or manual reset, but is not initialized
in standby mode.
Bit Bit Name Initial Value R/W
7 to 1 —
All 0
R
0
TCOE
0
R/W
Description
Reserved
These bits are always read as 0. The write value
should always be 0.
Timer Clock Pin Control
Selects use of the timer clock pin (TCLK) as an
external clock output pin or input pin for input capture
control for the on-chip timer, or as an output pin for
the on-chip RTC output clock. As the TCLK pin is
multiplexed as the PTE6 pin, when the TCLK pin is
used, bits PE6MD1 and PH7MD0 in the PECR
register should be set to 00 (Other function).
0: Timer clock pin (TCLK) used as external clock input
or input capture control input pin for the on-chip
timer
1: Timer clock pin (TCLK) used as output pin for on-
chip RTC output clock
Rev. 5.00 May 29, 2006 page 326 of 698
REJ09B0146-0500