SPRUG18 datasheet(164/214 Pages) TI

164 / 214 page

TMS320C6474

SPRS552H

– OCTOBER 2008 – REVISED APRIL 2011

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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.

Reserved

R-0 0000 0000 0000 0000 0000 0000 0000

Reserved

WDRSTSEL5

WDRSTSEL4

WDRSTSEL3

R-0 0000 0000 0000 0000 0000 0000 0000

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

2:2

WRDSTSELn

Reset Select for Watchdog Timer

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

7.15.2 Timers Peripheral Description(s)

Table 7-68. Timer 0 Registers

HEX ADDRESS

ACRONYM

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

164

Peripheral Information and Electrical Specifications

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