PEF2091 Siemens Semiconductor Group, PEF2091 Datasheet - Page 235

• Manufacturer Part Number: PEF2091
• Description: ICs for Communications(ISDN Echocancellation Circuit)
• Manufacturer: Siemens Semiconductor Group

6.6
Note 68: This chapter applies only in stand-alone mode.
Assumption: The address lines are not connected, the data lines are clamped to the
values given in the application.
1. Write to controller interface:
2. Read from controller interface:
3. Interrupt
Semiconductor Group
a) MON-8 WCI (80 7C) ––––>
b) MON-8 WCI (80 62) ––––>
a)
b)
c)
MON-8 RCI (80 40) ––––>
MON-8 ACI (80 00) <––––
MON-8 RCI (80 42) ––––>
MON-8 ACI (80 00) <––––
MON-8 RCI (80 41) ––––>
MON-8 ACI (80 A0) <––––
C/I AI (1100) <––––
C/I INT (0110) <––––
C/I AI (1100) <––––
Example for Programming Power Controller Interface
IOM
IOM
IOM
®
®
®
-2
-2
-2
Pin PCD0 … 2 = (1)
Pin PCA0 = (0)
Pin PCD0 … 2 = (0)
Pin PCD0 = (0)
Pin PCD1 = (0)
Pin PCD2 = (0)
Pin PCA1 = (0)
Pin PCD0 = (0)
Pin PCD1 = (0)
Pin PCD2 = (0)
Pin PCA1 = (0)
Pin PCD0 = (1)
Pin PCD1 = (0)
Pin PCD2 = (1)
Pin PCA1 = (1)
Pin INT (0) <-> (1)
Pin PCA0 = (0)
Pin PCA1 = (0)
Pin PCA1 = (1); 1
Pin PCA0 = (0)
Pin PCA0 = (1)
Pin PCA0 = (0)
IEC-Q
IEC-Q
IEC-Q
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; Write data 7
; 0
; Data not latched
; Write data 0
; Data not latched
; Values stable on data port
; Address is latched
; PCD0 … 2 = (0)
; Values stable on data port
; PCD0 … 2 = (0)
; Values stable on data port
; Address is latched
; PCD0 … 2 = (101)
; Initial C/I-code
; Level change on INT pin
; C/I-code INT issued for
; 4 IOM
; Read from address 0
; Read from address 1
; Address is latched
; Read from address 2
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®
-2-frames
Data Sheet 01.99
Programming
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PEB 2091
PEF 2091
to address
to address
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