TMS320TCI6487
TMS320TCI6488
Communications Infrastructure Digital Signal Processor
SPRS358F–APRIL 2007–REVISED AUGUST 2008
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8.14.1.2 Timer Watchdog Select
As mentioned previously, the timers can operate in watchdog mode. When in watchdog mode, the event
output from the timer can optionally reset the CPU. When used in this type of mode, Timer3, Timer4, and
Timer 5 correspond to C64x+ Megamodule Core 0, C64x+ Megamodule Core 1, and C64x+ Megamodule
Core 2, respectively. In order for the event not to trigger the reset when this operation is not desired, the
Timer watchdog reset selection register (WDRSTSEL) is created to turn this feature on/off. The
WDRSTSEL register is shown in Figure 8-37 and described in Table 8-56.
31
8
Reserved
R-0 0000 0000 0000 0000 0000 0000 0000
7
3
2
1
0
Reserved
WDRSTSEL5
R/W-0
WDRSTSEL4
R/W-0
WDRSTSEL3
R/W-0
R-0 0000 0000 0000 0000 0000 0000 0000
LEGEND: R/W = Read/Write; R = Read only; -n = value after reset
Figure 8-37. Timer Watchdog Reset Selection Register (WDRSTSEL)
Table 8-56. Timer Watchdog Reset Selection Register (WDRSTSEL) Field Descriptions
Bit
31:3
2:2
Field
Value Description
Reserved
Reserved
WRDSTSELn
Reset Select for Watchdog Timer
0
1
TOUTnL does not cause WDRSTSEL to assert to the corresponding C64x+ megamodule
TOUTnL causes a reset of the corresponding C64x+ megamodule via the host reset port of the
LPSC
8.14.2 Timers Peripheral Description(s)
Table 8-57. Timer 0 Registers
HEX ADDRESS
0291 0000
ACRONYM
PID
REGISTER NAME
Peripheral ID Register
0291 0004
EMUMGT_CLKSPD
Timer 0 Emulation Management/Clock Speed Register
Reserved
0291 0008
-
-
0291 000C
Reserved
0291 0010
TIMLO
TIMHI
PRDLO
PRDHI
TCR
TGCR
WDTCR
-
Timer 0 Counter Register Low
Timer 0 Counter Register High
Timer 0 Period Register Low
Timer 0 Period Register High
Timer 0 Control Register
Timer 0 Global Control Register
Timer 0 Watchdog Timer Control Register
Reserved
0291 0014
0291 0018
0291 001C
0291 0020
0291 0024
0291 0028
0291 002C
0291 0030
-
Reserved
0291 0034 - 0291 FFFF
-
Reserved
156
Peripheral Information and Electrical Specifications
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