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Embedded PC/RTOS Features 47
3.3.4 Timer 1 & 2 Load Count Register (TMRLCR12)
Timers 1 & 2 are 16-bits wide and obtain their load count from the Timer 1 & 2
Load Count Register (TMRLCR12), located at offset 0x10 from the address in
BAR2. The mapping of bits in this register are as follows:
When either of these fields are written (either by a single 32-bit write or separate
16-bit writes), the respective timer is loaded with the written value on the next
rising edge of the timer clock, regardless of whether the timer is enabled or
disabled. The value stored in this register is also automatically reloaded on
terminal count (or timeout) of the timer.
3.3.5 Timer 3 Load Count Register (TMRLCR3)
Timer 3 is 32-bits wide and obtains its load count from the Timer 3 Load Count
Register (TMRLCR3), located at offset 0x14 from the address in BAR2. The
mapping of bits in this register are as follows:
When this field is written, Timer 3 is loaded with the written value on the next
rising edge of the timer clock, regardless of whether the timer is enabled or
disabled. The value stored in this register is also automatically reloaded on
terminal count (or timeout) of the timer.
3.3.6 Timer 4 Load Count Register (TMRLCR4)
Timer 4 is 32-bits wide and obtains its load count from the Timer 4 Load Count
Register (TMRLCR4), located at offset 0x18 from the address in BAR2. The
mapping of bits in this register are as follows:
When this field is written, Timer 4 is loaded with the written value on the next
rising edge of the timer clock, regardless of whether the timer is enabled or
disabled. The value stored in this register is also automatically reloaded on
terminal count (or timeout) of the timer.
Table 3-5 Timer 1 & 2 Load Count Register (TMRLCR12)
Field
Bits
Read or Write
Timer 2 Load Count
TMRLCR12[31..16]
Read/Write
Timer 1 Load Count
TMRLCR12[15..0]
Read/Write
Table 3-6 Timer 3 Load Count Register (TMRLCR3)
Field
Bits
Read or Write
Timer 3 Load Count
TMRLCR3[31..0]
Read/Write
Table 3-7 Timer 4 Load Count Register (TMRLCR4)
Field
Bits
Read or Write
Timer 4 Load Count
TMRLCR4[31..0]
Read/Write
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