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MSP4458 Scheda tecnica(PDF) 25 Page - Micronas

Il numero della parte MSP4458
Spiegazioni elettronici  Multistandard Sound Processor
PDF  85 Pages
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Produttore elettronici  MICRONAS [Micronas]
Homepage  http://www.micronas.com
Logo MICRONAS - Micronas

MSP4458 Scheda tecnica(HTML) 25 Page - Micronas

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PRELIMINARY DATA SHEET
MSP 44x8G
Micronas
25
3.3.2.4. Read Registers on I2C Subaddress 11hex
Table 3–10: Read Registers on I2C Subaddress 11hex
Register
Address
Function
Name
STANDARD RESULT
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
STATUS
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
bit[7]
0/1
“1” indicates independent mono sound
(only for NICAM on MSP 4418G and MSP 4458G)
bit[6]
0/1
mono/stereo indication
bit[5,9]
00
analog sound standard (FM or AM) active
01
this pattern will not occur
10
digital sound (NICAM) available (MSP 4418G and
MSP 4458G only)
11
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]
0
detected secondary carrier (2nd A2 or SAP carrier)
1
no secondary carrier detected
bit[1]
0
detected primary carrier (Mono or MPX carrier)
1
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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