TMS320C6474
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SPRS552F – OCTOBER 2008 – REVISED JULY 2010
7.15.1.2 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 7-41
and described in
Table 7-67
.
31
8
Reserved
R-0 0000 0000 0000 0000 0000 0000 0000
7
3
2
1
0
Reserved
WDRSTSEL5
WDRSTSEL4
WDRSTSEL3
R-0 0000 0000 0000 0000 0000 0000 0000
R/W-0
R/W-0
R/W-0
LEGEND: R/W = Read/Write; R = Read only; -n = value after reset
Figure 7-41. Timer Watchdog Reset Selection Register (WDRSTSEL)
Table 7-67. Timer Watchdog Reset Selection Register (WDRSTSEL) Field Descriptions
Bit
Field
Value
Description
31:3
Reserved
Reserved
2:2
WRDSTSELn
Reset Select for Watchdog Timer
0
TOUTnL does not cause WDRSTSEL to assert to the corresponding C64x+ megamodule
1
TOUTnL causes a reset of the corresponding C64x+ megamodule via the host reset port of the
LPSC
7.15.2 Timers Peripheral Description(s)
Table 7-68. Timer 0 Registers
HEX ADDRESS
ACRONYM
REGISTER NAME
0291 0000
PID
Peripheral ID Register
0291 0004
EMUMGT_CLKSPD
Timer 0 Emulation Management/Clock Speed Register
0291 0008
-
Reserved
0291 000C
-
Reserved
0291 0010
TIMLO
Timer 0 Counter Register Low
0291 0014
TIMHI
Timer 0 Counter Register High
0291 0018
PRDLO
Timer 0 Period Register Low
0291 001C
PRDHI
Timer 0 Period Register High
0291 0020
TCR
Timer 0 Control Register
0291 0024
TGCR
Timer 0 Global Control Register
0291 0028
WDTCR
Timer 0 Watchdog Timer Control Register
0291 002C
-
Reserved
0291 0030
-
Reserved
0291 0034 - 0291 FFFF
-
Reserved
Copyright © 2008–2010, Texas Instruments Incorporated
Peripheral Information and Electrical Specifications
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