TNETV1644ZDU6 datasheet(127/306 Pages) TI1

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3.7.3.12 CLKOUT Block

TMS320DM6437

Digital Media Processor

www.ti.com

SPRS345D – NOVEMBER 2006 – REVISED JUNE 2008

This block of 1 pin consists of CLKOUT, PWM2, and GPIO muxed pin (CLKOUT0/PWM2/GP[84]). The

PINMUX1.CKOBK register field selects the pin function in the CLKOUT Block.

Table 3-40 summarizes the 1 pin in the CLKOUT Block, its multiplexed function, and the PINMUX

configurations to select the corresponding function.

Table 3-40. CLKOUT Block Multiplexed Pin Selection

MULTIPLEXED FUNCTIONS

SIGNAL

CLKOUT0

PWM2

GPIO

NAME

FUNCTION

SELECT

FUNCTION

SELECT

FUNCTION

SELECT

CLKOUT0/

PWM2/

CLKOUT0

CKOBK = 01

PWM2

CKOBK = 10

GP[84]

CKOBK = 00

GP[84]

Table 3-41 provides a different view of the CLKOUT Block pin muxing, showing the CLKOUT Block

function based on PINMUX1.CKOBK setting. The selection options are also shown pictorially in

Figure 3-11.

Table 3-41. CLKOUT Block Function Selection

PINMUX1.CKOBK

BLOCK FUNCTION

RESULTING PIN FUNCTIONS

GPIO (1)

GPIO: GP[84]

CLKOUT (default)

Device Clock-Out: CLKOUT0

PWM2

PWM2: PWM2

Reserved

This block defaults to CLKOUT0 pin function.

In addition, the VDD3P3V_PWDN.CLKOUT field determines the power state of the CLKOUT Block pin.

The CLKOUT Block pin defaults to powered up. For more details on the VDD3P3V_PWDN.CLKOUT field,

see Section 3.2, Power Considerations.

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