PEB2085 SIEMENS [Siemens Semiconductor Group], PEB2085 Datasheet - Page 14

• Manufacturer Part Number: PEB2085
• Description: ISDN SubscribernAccess Controller
• Manufacturer: SIEMENS [Siemens Semiconductor Group]

Pin Definitions and Functions of PEB 2085 (cont’d)
Pin No.
P-DIP-40
–
–
–
5
–
–
–
9
9
6
6
14
18
15
17
16
19
19
Semiconductor Group
Pin No.
P-LCC-44
40
6
5
5
18
17
10
10
10
7
7
15
21
16
20
19
22
22
Symbol
A0
A1
A2
SDAR
A3
A4
A5
SIP
EAW
SDAX
SDS1
M1
M0
X2
X1
X0
CP
BCL
Input (I)
Output (O)
I
I
I
I
I
I
I
I/O
I
O
O
I
I
I/O
I/O
I
I/O
O
Function
Address Bit 0 (Non-multiplexed bus type).
Address Bit 1 (Non-multiplexed bus type).
Address Bit 2 (Non-multiplexed bus type).
Serial Data Port A Receive.
Serial data is received on this pin at standard
TTL or CMOS level. An integrated pull-up circuit
enables connection of an open-drain/open
collector driver without an external pull-up
resistor. SDAR is used only if IOM-1 mode is
selected.
Address Bit 3 (Non-multiplexed bus type).
Address Bit 4 (Non-multiplexed bus type).
Address Bit 5 (Non-multiplexed bus type)
SLD Interface Port, IOM-1 mode. This line
transmits and receives serial data at standard
TTL or CMOS levels.
External Awake (termina specific function). If a
falling edge on this input is detected, the ISAC-S
generates an interrupt and, if enabled, a reset
pulse.
Serial Data Port A Transmit, IOM-1 mode.
Transmit data is shifted out via this pin at
standard TTL or CMOS levels.
Serial Data Strobe 1, IOM-2 mode.
A programmable strobe signal, selecting either
one or two B or IC channels on IOM-2 interface,
is supplied via this line. After reset, SDAX/SDS1
takes on its function only after a write access to
SPCR is made.
Setting of operating mode (see chapter 2.2).
Mode specific function pins (see chapter 2.2).
Clock Pulses/Special purpose pin, IOM-1 mode
and IOM-2 (except TE) mode
Bit Clock: Clock of frequency 768 kHz, IOM-2
mode in TE.
14
PEB 2085