MSP3457G datasheet(22/81 Pages) MICRONAS

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MSP 34x7G

PRELIMINARY DATA SHEET

Micronas

3.3.2.5. Read Registers on I2C Subaddress 11hex

Table 3–10: Read Registers on I2C Subaddress 11hex

Address

Function

Name

00 7Ehex

STANDARD RESULT Register

Readback of the detected TV sound or FM-Radio Standard

bit[15:0]

00 00hex Automatic Standard Detection could not find

a sound standard

00 02hex MSP Standard Codes (see Table 3–8)

...

00 40hex

>07 FFhex Automatic Standard Detection still active

STANDARD_RES

02 00hex

STATUS Register

Contains all user relevant internal information about the status of the MSP

bit[15:10]

undefined

bit[8]

0/1

“1” indicates bilingual sound mode or SAP present

(internally evaluated from received analog or digital iden-

tification signals)

bit[7]

0/1

“1” indicates independent mono sound (only for

NICAM)

bit[6]

0/1

mono/stereo indication

(internally evaluated from received analog or digital iden-

tification signals)

bit[5,9]

analog sound standard (FM or AM) active

this pattern will not occur

digital sound (NICAM) available

bad reception condition of digital sound (NICAM) due to:

a. high error rate

b. unimplemented sound code

c. data transmission only

bit[4]

0/1

low/high level of digital I/O pin D_CTR_I/O_1

bit[3]

0/1

low/high level of digital I/O pin D_CTR_I/O_0

bit[2]

detected secondary carrier (2nd A2 or SAP sub-carrier)

no secondary carrier detected

bit[1]

detected primary carrier (Mono or MPX carrier)

no primary carrier detected

bit[0]

undefined

If STATUS change indication is activated by means of MODUS[1]: Each

change in the STATUS register sets the digital I/O pin D_CTR_I/O_1 to high

level. Reading the STATUS register resets D_CTR_I/O_1.

STATUS

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