參數(shù)資料
型號: ST75C540FP-A
廠商: 意法半導(dǎo)體
英文描述: SUPER INTEGRATED DEVICESWITH DSP, AFE & MEMORIES FORTELEPHONY,MODEM, FAXOVERINTERNET& POTSLINES
中文描述: 超級綜合DEVICESWITH數(shù)字信號處理器,模擬前端
文件頁數(shù): 28/84頁
文件大?。?/td> 599K
代理商: ST75C540FP-A
VII - COMMAND SET DESCRIPTION
Commands are presentedaccording to the following form :
COMMAND
Opcode
Hexadecimaldigit
X
Short description of the functionsperformedby the command.
Parameters
Field
Byte
Name
X
Command Name Meaning
COMMAND
X
X
X
X
X
X
X
Synopsis
Pos.
b..a
Value
Definition
xx *
Explanation of the parameter
Default value
Field
Byte
Pos.
Name of the addressed bit field.
Index (or addressin the dual port RAM)of the parameterbyte (from1 to4).
Bit field position inside the parameter byte. Can either be a single position (from 0 to 7, 0
being LSB) or a range.
Possiblevaluesforthebit(resp.bitfield).Rangemeansallvaluesareallowed.Astarmeansadefault
value.Valuesareexpressedeitherundertheformofabitstring,orunderhexadecimalformat.
Value
ASEL
Opcode:
ASEL
0B
0
0
0
0
1
0
1
1
Synopsis
Select the analog path options. This command select the Attenuation/Muteof the outputs
TxA1/TxA2 and SPK1/SPK2/SPK3.This command select also the source of the Micsignal
MIC1/MIC2/MIC2and the source of the Line Signal RxA/MIC3.
Parameters
Field
Byte
1
Pos.
7..4
Value
0000*
0001
0010
...
1010
1011
Other
00*
01
10
11
0*
1
0*
1
0*
1
0*
1
0*
1
Definition
ASEL_ASPK1
Infinity attenuation
30dB attenuation
27dB attenuation
...
3dB attenuation
0dB attenuation
Reserved
Select Rx input as MIC1
Select Rx input as MIC1
Select Rx input as MIC2
Select Rx input as MIC3
Select RxA as line input
Select Mic3 as line input
SPK1 output muted
SPK1 output normal
SPK2 output muted
SPK2 output normal
SPK3 output muted
SPK3 output normal
TxA output normal
TxA output muted
ASEL_MICSEL
2
1..0
ASEL_LINESEL
2
2
ASEL_ESPK1
2
3
ASEL_ESPK2
2
4
ASEL_ESPK3
2
5
ASEL_MTXA
2
7
CALL
Opcode:
Call a Subroutine
CALL
19
0
0
0
1
1
0
0
1
Synopsis
Parameters
CALL allows to execute a part of the ST75C530/540firmware with a specificargument.
Field
Byte
Pos.
Value
C_ADDR_L
1
7..0
Low byte of the call address
C_ADDR_H
2
7..0
High byte of the call address
C_DATA_L
3
7..0
Low byte of the argument
C_DATA_H
4
7..0
High byte of the argument
This instruction can be used with SGS-THOMSON Microelectronics Application Laboratory Support for
special applicationsdevelopmentor debuggingneeds.Contact your local representative.
28/84
Definition
ST75C530 - ST75C540
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