參數(shù)資料
型號(hào): STV8257
廠商: 意法半導(dǎo)體
英文描述: Digital Audio Decoder/Processor for A2 and NICAM Television/Video Recorders
中文描述: 數(shù)字音頻解碼器/處理器為A2和麗音電視/錄像機(jī)
文件頁(yè)數(shù): 57/149頁(yè)
文件大小: 2775K
代理商: STV8257
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STV82x7
Register List
necessary, the PLL Clock can be re-programmed for other quartz crystal frequencies within a range
from 23 to 30 MHz. Other quartz crystal frequencies can be programmed on your demand.
Note:
A Crystal Frequency change is compatible with other default I2C programming including the built-in
Automatic Standard Recognition System.
SYS_CONFIG
System Configuration Control Register
FS1_DIV
FS1 I/O Divider Programming Register
Address: 07h
Type: R/W
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
I2S_CH_NB[1:0]
INPUT_FREQ[3:0]
INPUT_CONFIG[1:0]
Bit Name
Reset
Function
I2S_CH_NB[1:0]
00
Number of I2S channels input
00: N/A
01: 2 channels
10: 4 channels
11: 6 channels
INPUT_FREQ[3:0]
0000
I2S Input frequency
0000 : 32 kHz
0001: 44.1 kHz
0010: 48 kHz
0011: 8 kHz (I2S input, 2 channels only)
0100 : 11.025 kHz (I2S input, 2 channels only)
0101 : 12 kHz (I2S input, 2 channels only)
0110 : 16 kHz (I2S input, 2 channels only)
0111 : 22.05 kHz (I2S input, 2 channels only)
1000 : 24 kHz (I2S input, 2 channels only)
INPUT_CONFIG[1:0]
0
Input stream to process
0 : SIF & SCART input (32 kHz)
1 : SCART input only (48 kHz)
2 : I2S input only
Address: 08h
Type: R/W
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
EN_PROG
0
NDIV1[1:0]
0
SDIV1[2:0]
Bit Name
Reset
Function
EN_PROG
0
FS1 programmation enable
0: FS1 I2C registers programmation ignored by system - FS1 pre-programmed automatically by
SYS-CONFIG register (normal use with standard quartz of 27 MHz)
1: FS1 I2C registers programmation used by system - FS1 pre-programmation by SYS-CONFIG
desactivated (to be used in case of no standard quartz, different from 27 MHz)
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