TNETV1644ZDU6 datasheet(280/306 Pages) TI1

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6.19.2

Timer Electrical Data/Timing

TINPxL

TOUTxL

TMS320DM6437

Digital Media Processor

SPRS345D – NOVEMBER 2006 – REVISED JUNE 2008

www.ti.com

Table 6-94. Timer 2 (Watchdog) Registers (continued)

HEX ADDRESS RANGE

ACRONYM

DESCRIPTION

0x01C2 1C2C - 0x01C2 1FFF

Reserved

Table 6-95. Timing Requirements for Timer Input(1)(2)(3) (see Figure 6-50)

-7/-6/-5/-4

-L/-Q6/-Q5/-Q4

NO.

UNIT

MIN

MAX

TINP0L, if TIMERCTL.TINP0SEL = 0

[default]

tw(TINPH)

Pulse duration, TINPxL high

TINP0L, if TIMERCTL.TINP0SEL = 1

0.33P

TINP1L

TINP0L, if TIMERCTL.TINP0SEL = 0

[default]

tw(TINPL)

Pulse duration, TINPxL low

TINP0L, if TIMERCTL.TINP0SEL = 1

0.33P

TINP1L

(1)

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

(2)

The TIMERCTL.TINP0SEL field in the System Module determines if the TINP0L input directly goes to Timer 0

(TIMERCTL.TINP0SEL=0), or if the TINP0L input is first divided down by 6 before going to Timer 0 (TIMERCTL.TINP0SEL=1).

(3)

TINP1L input goes directly to Timer 1.

Table 6-96. Switching Characteristics Over Recommended Operating Conditions for Timer Output(1) (see

Figure 6-50)

-7/-6/-5/-4

-L/-Q6/-Q5/-Q4

NO.

UNIT

MIN

MAX

tw(TOUTH)

Pulse duration, TOUTxL high

tw(TOUTL)

Pulse duration, TOUTxL low

(1)

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

Figure 6-50. Timer Timing

280

Peripheral Information and Electrical Specifications

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