SH7750_08 Datasheet, PDF (425/1162 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer

12.2 Register Descriptions
Section 12 Timer Unit (TMU)
12.2.1 Timer Output Control Register (TOCR)
TOCR is an 8-bit readable/writable register that specifies whether external pin TCLK is used as
the external clock or input capture control input pin, or as the on-chip RTC output clock output
pin.
TOCR is initialized to H'00 by a power-on or manual reset, but is not initialized in standby mode.
Bit: 7
6
5
4
3
2
1
0
—
—
—
—
—
—
— TCOE
Initial value: 0
0
0
0
0
0
0
0
R/W: R
R
R
R
R
R
R
R/W
Bits 7 to 1—Reserved: These bits are always read as 0. A write to these bits is invalid, but the
write value should always be 0.
Bit 0—Timer Clock Pin Control (TCOE): Specifies whether timer clock pin TCLK is used as
the external clock or input capture control input pin, or as the on-chip RTC output clock output
pin.
Bit 0: TCOE
Description
0
Timer clock pin (TCLK) is used as external clock input or input capture
control input pin
(Initial value)
1
Timer clock pin (TCLK) is used as on-chip RTC output clock output pin*
Note: * Low level output in standby mode.
Rev.7.00 Oct. 10, 2008 Page 341 of 1074
REJ09B0366-0700