PEF2091 Siemens Semiconductor Group, PEF2091 Datasheet - Page 48
PEF2091
Manufacturer Part Number
PEF2091
Description
ICs for Communications(ISDN Echocancellation Circuit)
Manufacturer
Siemens Semiconductor Group
Datasheet
1.PEF2091.pdf
(298 pages)
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Semiconductor Group
2.3
The table below gives an overview of the different microprocessor bus modes.
Table 1
Pin Number
P-LCC-44
12
44
43
42
41
40
39
38
25
19
24
36
35
33
20
34
17
3
37
18
Microprocessor Bus Interface (Overview)
T-QFP-64
and
M-QFP-64
24
5
4
3
2
1
62
61
44
36
43
59
58
55
37
57
32
10
60
35
Microprocessor Bus Interface
MS1
Stand-Alone
Mode
PMODE = 0
PCD0
PCD1
PCD2
PCRD
PCWR
PCA0
PCA1
LT
INT
BURST
MS2
MS0
TP1
MTO
DOD
TSP
DISS
AUTO
n.c.
Symbol in Processor Mode
Siemens/
Intel
multiplexed
AD0
AD1
AD2
AD3
AD4
AD5
AD6
AD7
INT
SMODE=0 A0
n.c.
n.c.
ALE
RD
WR
CS
48
MCLK
Siemens/
Intel
demultiplex.
D0
D1
D2
D3
D4
D5
D6
D7
INT
A1
A2
A3
ALE=0
RD
WR
CS
RST
PMODE = 1
Motorola
demultiplex.
D0
D1
D2
D3
D4
D5
D6
D7
INT
A0
A1
A2
A3
ALE=1
DS
R/W
CS
Pin Descriptions
Data Sheet 01.99
Serial
n.c.
n.c.
n.c.
n.c.
n.c.
n.c.
n.c.
n.c.
INT
SMODE=1
CDIN
CDOUT
n.c.
CCLK
n.c.
n.c.
CS
PEB 2091
PEF 2091
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