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ST75C530 Datasheet(PDF) 33 Page - STMicroelectronics

Part # ST75C530
Description  SUPER INTEGRATED DEVICESWITH DSP, AFE & MEMORIES FORTELEPHONY,MODEM, FAXOVERINTERNET& POTSLINES
PDF  84 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST75C530 Datasheet(HTML) 33 Page - STMicroelectronics

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DSIT
Define Status Interrupt
DSIT
Opcode:
13
000
10011
Synopsis
DSIT specifies the bit mask used with the STATUS[0] and STATUS[1] byte to generate an
interrupt IT4 to controller. Each time a bit change happens in the status words, assuming
the corresponding bit mask will be set, an interrupt will be generated.
Parameters
Field
Byte
Pos.
Value
Definition
STA_IT_MSK0
1
7..0
Status[0] bit mask pattern
STA_IT_MSK1
2
7..0
Status[1] bit mask pattern
Note :
The default IT Status is 0x3F for STATUS[0] and 0xFF for STATUS[1].
FORM
Select Transmission Format
FORM
Opcode:
09
000
01001
Synopsis
FORM defines the type of transmission used on the line.
Parameters
Field
Byte
Pos.
Value
Definition
X_SYNC
1
2..0
000*
001
010
011
100
Synchronous format
Transmit continous “1”
(1)
HDLC framing
Transmit continous ”0”
(1)
UART
X_ANBIT
2
1..0
00
01
7 Bit per character
8 Bit per character
X_APAR
2
3..2
00
01
10
No parity
Even parity
Odd parity
X_ASTOP
2
5
0
1
1 stop bit
(1)
2 stop bit
(1)
Note :
1. Valid only when transmitting.
HSHK
Handshake
HSHK
Opcode:
04
000
00100
Synopsis
HSHK is used to command the ST75C530/540 to begin the transmit handshake sequence
processing. The progress of the handshake is reported to the control processor.
Parameter
Non parametric command.
VII - COMMAND SET DESCRIPTION (continued)
ST75C530 - ST75C540
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