System Timer
UG0331 User Guide Revision 15.0
625
19.4.5
Timer x Masked Interrupt Status Register
19.4.6
Timer 64 Value Upper Register
19.4.7
Timer 64 Value Lower Register
19.4.8
Timer 64 Load Value Upper Register
Table 622 •
TIMx_MIS
Bit
Number Name
R/W
Reset
Value
Description
31:1
Reserved
R
0
Software should not rely on the value of a reserved bit. To provide
compatibility with future products, the value of a reserved bit should be
preserved across a read-modify-write operation.
0
TIMx_MIS
R
0
Timer x masked interrupt status (MIS)
This read only bit is a logical AND of the TIMxRIS and TIMxINTEN bits.
The TIMERxINT output from the Timer has the same value as this bit.
Writing to this bit has no effect. Reading this register when the Timer is set
to 64-bit mode returns the reset value.
Table 623 •
TIM64_VAL_U
Bit
Number Name
R/W
Reset
Value Description
31:0
TIM64_VAL_U
R
0
This register holds the current value of the upper 32 bits of the 64-bit
count value for the Timer.
TIM64_VAL_L must be read before TIM64_VAL_U.
This register is read only; writes have no effect. Reading this register
when the Timer is set to 32-bit mode returns the reset value.
Table 624 •
TIM64_VAL_L
Bit
Number Name
R/W
Reset
Value
Description
31:0
TIM64_VAL_L
R
0
This register holds the current value of the lower 32 bits of the 64-bit count
value for the Timer. This register is read only; writes have no effect. When
reading from this register, the upper 32 bits of the 64-bit counter is stored
into TIM64_VAL_U. To properly read the 64-bit counter value, you must
read from this register first, then the TIM64_VAL_U. Reading this register
when the Timer is set to 32-bit mode returns the reset value.
Table 625 •
TIM64_LOADVAL_U
Bit
Number Name
R/W
Reset
Value
Description
31:0
TIM64_LOADVAL_U R/W
0
This register holds the upper 32-bit value to load into the Timer when
in 64-bit mode. When this register is written, the value written is
loaded immediately into a temporary register. The value in the
temporary register is only written to the Timer when the lower 32-bit
word TIM64_LOADVAL_L is written. Writing this register when the
Timer is set to 32-bit mode has no effect. Reading this register when
the Timer is set to 32-bit mode returns the reset value.