Register Descriptions; Timer Output Control Register (Tocr) - Hitachi SH7751 Hardware Manual

Table 12.2 TMU Registers (cont)
Chan- Abbre-
nel Name viation R/W
3 Timer TCOR3 R/W Ini-
constant
register 3
Timer TCNT3 R/W Ini-
counter 3
Timer TCR3
control
register 3
4 Timer TCOR4 R/W Ini-
constant
register 4
Timer TCNT4 R/W Ini-
counter 4
Timer TCR4
control
register 4
Notes: *1 Not initialized in module standby mode when the input clock is the on-chip RTC output
clock.
*2 Counts in module standby mode when the input clock is the on-chip RTC output clock.
12.2

Register Descriptions

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
—
Initial value: 0
R/W: R
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.
Rev. 3.0, 04/02, page 290 of 1064
Initialization
Power-
On Manual
Reset Reset
Held
tialized
Held
tialized
R/W Ini- Held
tialized
Held
tialized
Held
tialized
R/W Ini- Held
tialized
6 5
— —
0 0
R R
Stand-
by
Mode Initial Value P4 Address
Held H'FFFFFFFF H'FE100008 H'1E100008 32
Held H'FFFFFFFF H'FE10000C H'1E10000C 32
Held H'0000 H'FE100010 H'1E100010 16
Held H'FFFFFFFF H'FE100014 H'1E100014 32
Held H'FFFFFFFF H'FE100018 H'1E100018 32
Held H'0000 H'FE10001C H'1E10001C 16
4 3
— —
0 0
R R
Area 7 Access
Address Size
2 1
— — TCOE
0 0
R R R/W
0
0