Timer Control 2 Register (T2Cr); Figure 7.4-3 Timer 2 Control Register (T2Cr) - Fujitsu F2MC-8L Series Hardware Manual

7.4.2

Timer Control 2 Register (T2CR)

The timer 2 control register (T2CR) is used to select each function of timer 1 in 8-bit
mode or of the 16-bit timer, enable or disable operation, control interrupts, and check
the state of the 8/16-bit timer/counter. For use in 16-bit mode, the T2CR register must
also be set appropriately although the timer 1 control register (T1CR) controls the
timer.
Timer Control 2 Register (T2CR)
Address
0018
H
R/W : Readable and writable
X

Figure 7.4-3 Timer 2 Control Register (T2CR)

Bit 7 Bit 6 Bit 5 Bit 4
T2IF T2IE T2OS1 T2OS0 T2CS1 T2CS0 T2STP T2STR
R/W R/W R/W R/W
: Indeterminate
: Initial value
Bit 3 Bit 2 Bit 1 Bit 0
R/W R/W R/W R/W
Timer counter start bit
T2STR
0 Timer sops counter operation.
1 Clears and starts counter operation.
T2STP
Continues counter operation without clearing the
0
counter.
1 Pauses counter operation.
Count clock select bits
T2CS1 T2CS0
0 0 2 t
inst
0 1 32 t
inst
1 0 512 t
inst
1 1 16-bit mode
t : Instruction cycle
inst
T2OS1 T2OS0
0 0 Always write "00".
0 1 Setting prohibited
1 0 Setting prohibited
1 1 Setting prohibited
Interrupt request enable bit
T2IE
0 Disables interrupt request output.
1 Enables interrupt request output.
Interrupt request flag bit
T2IF
Read
No match with counter
0
value
1 Match with counter value
7.4 8/16-bit Timer/Counter Registers
Initial value
X000XXX0
B
Timer stop bit
Unuesd bits
Write
Clears this bit.
No effect. The bit does
not change.
169