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參數(shù)資料
| 型號： | MSP34X1G |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | Multistandard Sound Processor Family with Virtual Dolby Surround |
| 中文描述： | 多標(biāo)準(zhǔn)聲音處理器系列與虛擬杜比環(huán)繞聲 |
| 文件頁數(shù)： | 46/104頁 |
| 文件大?。?/td> | 871K |
| 代理商： | MSP34X1G |
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MSP 34x1G
PRELIMINARY DATA SHEET
46
Micronas
3.5.4. B/G-FM (A2 or NICAM)
<80 00 80 00>
<80 00 00 00>
<80 10 00 30 20 03>
<80 12 00 08 03 20>
<80 12 00 0E 24 03>
// Softreset
// MODUS-Register: Automatic = on
// Source Sel. = (St or A) & Ch. Matr. = St
// FM/AM-Prescale = 24
hex
,
FM-Matrix = MONO/SOUNDA
// NICAM-Prescale =
5A
hex
// Standard Select: A2 B/G or NICAM B/G
<80 12 00 10 5A 00>
<80 10 00 20 00 03>
or
<80 10 00 20 00 08>
<80 12 00 00 73 00>
// Loudspeaker Volume 0 dB
3.5.5. BTSC-Stereo
<80 00 80 00>
<80 00 00 00>
<80 10 00 30 20 03>
<80 12 00 08 03 20>
<80 12 00 0E 24 03>
// Softreset
// MODUS-Register: Automatic = on
// Source Sel. = (St or A) & Ch. Matr. = St
// FM/AM-Prescale = 24
,
FM-Matrix = Sound A Mono
// Standard Select: BTSC-STEREO
// Loudspeaker Volume 0 dB
<80 10 00 20 00 20>
<80 12 00 00 73 00>
3.5.6. BTSC-SAP with SAP at Loudspeaker Channel
<80 00 80 00>
<80 00 00 00>
<80 10 00 30 20 03>
<80 12 00 08 04 20>
<80 12 00 0E 24 03>
// Softreset
// MODUS-Register: Automatic = on
// Source Sel. = (St or B) & Ch. Matr. = St
// FM/AM-Prescale = 24
hex
,
FM-Matrix = Sound A Mono
// Standard Select: BTSC-SAP
// Loudspeaker Volume 0 dB
<80 10 00 20 00 21>
<80 12 00 00 73 00>
3.5.7. FM-Stereo Radio
<80 00 80 00>
<80 00 00 00>
<80 10 00 30 20 03>
<80 12 00 08 03 20>
<80 12 00 0E 24 03>
// Softreset
// MODUS-Register: Automatic = on
// Source Sel. = (St or A) & Ch. Matr. = St
// FM/AM-Prescale = 24
hex
,
FM-Matrix = Sound A Mono
// Standard Select: FM-STEREO-RADIO
// Loudspeaker Volume 0 dB
<80 10 00 20 00 40>
<80 12 00 00 73 00>
3.5.8. Automatic Standard Detection
A detailed software flow diagram is shown in Fig. 3
–
2
on page 47.
<80 00 80 00>
<80 00 00 00>
<80 10 00 30 20 03>
<80 12 00 08 03 20>
<80 12 00 0E 24 03>
// Softreset
// MODUS-Register: Automatic = on
// Source Sel. = (St or A) & Ch. Matr. = St
// FM/AM-Prescale = 24
hex
,
FM-Matrix = Sound A Mono
// NICAM-Prescale =
5A
hex
// Standard Select:
Automatic Standard Detection
<80 12 00 10 5A 00>
<80 10 00 20 00 01>
// Wait till STANDARD RESULT contains a value
≤
07FF
// IF STANDARD RESULT contains 0000
// do some error handling
// ELSE
<80 12 00 00 73 00>
// Loudspeaker Volume 0 dB
3.5.9. Software Flow for Interrupt driven STATUS
Check
A detailed software flow diagram is shown in Fig. 3
–
2
on page 47.
If the D_CTR_I/O_1 pin of the MSP 34x1G is con-
nected to an interrupt input pin of the controller, the fol-
lowing interrupt handler can be applied to be automati-
cally called with each status change of the
MSP 34x1G. The interrupt handler may adjust the TV
display according to the new status information.
Interrupt Handler:
<80 11 02 00 <81 dd dd>
// Read STATUS
// adjust TV display with given status information
// Return from Interrupt
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