ST75C520 datasheet(13/45 Pages) STMICROELECTRONICS

Part #	ST75C520

Description	HIGH SPEED FAX MODEM DATA PUMP

PDF	45 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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13 / 45 page

V.1.3 - Host Interface Summary

Address (hex)

Description

Size (Byte)

Mnemonic

COMMAND AREA

$00

Command

COMSYS

$01-$04

Command Parameters

COMPAR[0..3]

REPORT AREA

$05

Acknowledge Counter

COMACK

$06-$07

Report

COMREP[0..1]

STATUS AREA

$08

Error Status

SYSERR

$09-$0A

General Status

STATUS[0..1]

$0B

Quality Monitor

STAQUA

$0C-$0E

Optional Report

STAOPT[0..2]

DATA AREA

$1C

Data Rx Buffer 0 Status

DTRBS0

$1D-$24

Data Rx Buffer 0

DTRBF0[0..7]

$25

Data Rx Buffer 1 Status

DTRBS1

$26-$2D

Data Rx Buffer 1

DTRBF1[0..7]

$2E

Data Tx Buffer 0 Status

DTTBS0

$2F-$36

Data Tx Buffer 0

DTTBF0[0..7]

$37

Data Tx Buffer 1 Status

DTTBS1

$38-$3F

Data Tx Buffer 1

DTTBF1[0..7]

INTERRUPT AREA

$40-$46

Reset Interrupt Reg.

ITREST[0..6]

$4F

Interrupt Mask Reg.

ITMASK

$50

Interrupt Source Reg.

ITSRCR

ST75C520

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ST75C520 Datasheet(PDF) 13 Page - STMicroelectronics

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