AFE8220IPZPQ1 datasheet(39/49 Pages) TI1

39 / 49 page

AFE8220-Q1

www.ti.com....................................................................................................................................................... SBAS455A – JANUARY 2009 – REVISED JULY 2009

Table 24. Control Registers (continued)

Address: 39

Description: Not Used

Bits

Range

Action

Parameter Name

—

Address: 40

Description: Reference Clock Configuration

Bits

Range

Action

Parameter Name

15:0

0..4095

Low period ( in units of MCLK cycles) for reference clock output

refclk_lo(15:0)

Address: 41

Description: Reference Clock Configuration

Bits

Range

Action

Parameter Name

15:0

0..4095

High period (in units of MCLK cycles) for reference clock output

refclk_hi(15:0)

Address: 42

Description: GPIO Configuration

Bits

Range

Action

Parameter Name

0 = GPIO0 set as input

0/1

gpio_oe(0)

1 = GPIO0 set as output

0 = GPIO1 set as input

0/1

gpio_oe(1)

1 = GPIO1 set as output

0 = GPIO2 set as input

0/1

gpio_oe(2)

1 = GPIO2 set as output

0 = GPIO3 set as input

0/1

gpio_oe(3)

1 = GPIO3 set as output

0 = GPIO4 set as input

0/1

gpio_oe(4)

1 = GPIO4 set as output

0 = GPIO5 set as input

0/1

gpio_oe(5)

1 = GPIO5 set as output

0 = GPIO6 set as input

0/1

gpio_oe(6)

1 = GPIO6 set as output

0 = GPIO7 set as input

0/1

gpio_oe(7)

1 = GPIO7 set as output

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