ADPD4100 datasheet(70/101 Pages) AD

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ADPD4100/ADPD4101

Data Sheet

Rev. 0 | Page 70 of 101

GLOBAL CONFIGURATION REGISTERS

Table 30. Global Configuration Register Details

Addr

Name

Bits

Bit Name

Description

Reset

Access

0x000D TS_FREQ

[15:0]

TIMESLOT_PERIOD_L Lower 16 bits of time slot period in low frequency oscillator cycles.

The time slot rate is (low frequency oscillator frequency) ÷

(TIMESLOT_PERIOD_x). The default value operates at 100 Hz when

using the 1 MHz low frequency oscillator.

0x2710 R/W

0x000E TS_FREQH

[15:7]

Reserved

Reserved.

0x0

[6:0]

TIMESLOT_PERIOD_H Upper seven bits of time slot period in low frequency oscillator

cycles. The time slot rate is (low frequency oscillator frequency) ÷

(TIMESLOT_PERIOD_x). The default value operates at 100 Hz when

using the 1 MHz low frequency oscillator.

0x0

R/W

0x000F SYS_CTL

SW_RESET

Software reset. Write 1 to this bit to assert a software reset, which

stops all AFE operations and resets the device to its default values.

Software reset does not reset the SPI or I2C port.

0x0

R/W

[14:10] Reserved

Reserved.

0x0

[9:8]

ALT_CLOCKS

External clock select.

0x0

R/W

00: use internal low frequency oscillator and high frequency

oscillator.

01: use external low frequency oscillator.

02: use external high frequency oscillator and internal low

frequency oscillator.

03: use external high frequency oscillator and generate low

frequency oscillator from high frequency oscillator.

[7:6]

ALT_CLK_GPIO

Alternate clock GPIO select.

0x0

R/W

00: use GPIO0 for alternate clock.

01: use GPIO1 for alternate clock.

10: use GPIO2 for alternate clock.

11: use GPIO3 for alternate clock.

[5:3]

Reserved

Write 0x0.

0x0

R/W

LFOSC_SEL

Selects low frequency oscillator. This bit selects between the

32 kHz and 1 MHz low speed oscillator.

0x0

R/W

0: use the 32 kHz oscillator as the low frequency clock.

1: use the 1 MHz oscillator as the low frequency clock.

OSC_1M_EN

Enable 1 MHz low frequency oscillator. This bit turns on the 1 MHz

low frequency oscillator, which must be left running during all

operations while using this oscillator.

0x0

R/W

OSC_32K_EN

Enable 32 kHz low frequency oscillator. This bit turns on the 32 kHz

low frequency oscillator, which must be left running during all

operations while using this oscillator.

0x0

R/W

0x0010 OPMODE

[15:12] Reserved

Reserved.

0x0

[11:8]

TIMESLOT_EN

Time slot enable control.

0x0

R/W

0000: Time Slot Sequence A only.

0001: Time Slot Sequence AB.

0010: Time Slot Sequence ABC.

0011: Time Slot Sequence ABCD.

0100: Time Slot Sequence ABCDE.

0101: Time Slot Sequence ABCDEF.

0110: Time Slot Sequence ABCDEFG.

0111: Time Slot Sequence ABCDEFGH.

1000: Time Slot Sequence ABCDEFGHI.

1001: Time Slot Sequence ABCDEFGHIJ.

1010: Time Slot Sequence ABCDEFGHIJK.

1011: Time Slot Sequence ABCDEFGHIJKL.

ADPD4100 Datasheet(PDF) 70 Page - Analog Devices

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