TNETV1647GSTZWT datasheet(217/236 Pages) TI1

217 / 236 page

TIM_IN

TMS320DM6441

www.ti.com

SPRS359E – SEPTEMBER 2006 – REVISED AUGUST 2010

Table 6-99. Watchdog Timer Registers

HEX ADDRESS RANGE

ACRONYM

DESCRIPTION

0x01C2 1C00

Reserved

Watchdog timer Emulation Management/Clock Speed

0x01C2 1C04

EMUMGT_CLKSPD

0x01C2 1C10

TIM12

Watchdog timer Counter Register 12

0x01C2 1C14

TIM34

Watchdog timer Counter Register 34

0x01C2 1C18

PRD12

Watchdog timer Period Register 12

0x01C2 1C1C

PRD34

Watchdog timer Period Register 34

0x01C2 1C20

TCR

Watchdog timer Control Register

0x01C2 1C24

TGCR

Watchdog timer Global Control Register

0x01C2 1C28

WDTCR

Watchdog timer Watchdog Timer Control Register

0x01C2 1C2C - 0x01C2 1FFF

Reserved

6.21.2

Timer Electrical Data/Timing

Table 6-100. Timing Requirements for Timer Input(1) (2) (see Figure 6-71)

1.05 V and 1.2 V

NO.

UNIT

MIN

MAX

tc(TIN)

Cycle time, TIM_IN

tw(TINPH)

Pulse duration, TIM_IN high

0.45C

0.55C

tw(TINPL)

Pulse duration, TIM_IN low

0.45C

0.55C

tt(TIN)

Transition time, TIM_IN

0.05C

(1)

P = MXI/CLKIN cycle time in ns. For example, when MXI/CLKIN frequency is 27 MHz, use P = 37.037 ns.

(2)

C = TIM_IN cycle time in ns. For example, when TIM_IN frequency is 27 MHz, use C = 37.037 ns

Figure 6-71. Timer Timing

Peripheral and Electrical Specifications

217

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