STB5701 datasheet(27/35 Pages) STMICROELECTRONICS

27 / 35 page

STB5701

Functional description

27/35

4.8

Detailed display description

0x9C

Scd_prescaler

0x00000001 Value of prescaler for sampling is stored.

0xA0

Interrupt_enable

0x00000000

Interrupt enable register value is stored in this

0xA4

Interrupt_clear

0x00000000

Interrupt clear register value is stored in this

0xA8

Timeout

0x00000000 Timeout for SCS based on prescaler tick.

Table 10.

I2C mapped SCD registers - summary (continued)

Address

Name

Reset value

Function

Table 11.

DIG_config register format

DIG_Config

0x00

R/W

Bit

Bit field

Reset

state

Function

1:0

MODE

00: UHF direct

01: IR direct

10: UHF triggered (DOUT = 0 when no trigger)

11: IR or UHF triggered

STATE_SEL

1: STATE is driven by the SCD interrupt output

0: STATE is driven by the SCD detect state

STATE_INV

1: Invert the STATE output

4STATE_DRIVE

0: Open drain

1: Push pull

CLKOUT_ENABLE

1: Enable clock output buffer

31:6

Reserved

0x00

Table 12.

RF_Config register format

RF_Config

0x04

R/W

Bit

Bit field

Reset

state

Function

RF_ENABLE

1: Enable front end

0: Disable front end

1ASK_NOTFSK

1: ASK detection

0: FSK detection

2LNA_GAIN

1: Enable AGC

0: Disable AGC (high gain)

Not used

31:4

Reserved

0x00

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