TXC-03305AIPQ Transwitch Corporation, TXC-03305AIPQ Datasheet - Page 16

• Manufacturer Part Number: TXC-03305AIPQ
• Manufacturer: Transwitch Corporation

Specifications of TXC-03305AIPQ

• Lead Free Status / RoHS Status: Not Compliant

TXC-03305-MB
Ed. 4, September 2000
M13X
TXC-03305
MICROPROCESSOR INTERFACE
Symbol
P1
P0
Lead No.
BGA
A15
B14
Lead No.
PQFP
161
162
I/O/P
I
DATA SHEET
Type
TTLp
- 16 -
Microprocessor Interface Type Select: The type of
microprocessor interface selected by these two bits is
given in the table below:
The multiplexed interface consists of eight bidirec-
tional address/data leads, select, address latch
enable, read, write and interrupt request. When P(1-
0) = H,H only address range 00H-1FH is accessible,
address straps S5-S7 are active, and the M13X lead
must be left floating or tied high. This enables back-
wards compatibility of the 208-lead PQFP packaged
devices with the predecessor M13E device that has
the same package and lead assignments. It also
enables functional compatibility with the earlier M13
device, which has a 160-lead PQFP package. When
sible, address straps S6-S7 are active and the state of
the M13X lead determines whether the M13X func-
tionality in registers 25H-3FH is enabled or disabled.
The Intel compatible interface (80X86 family) consists
of eight address leads, eight bidirectional data leads,
select, read, write, ready and interrupt request.
The Motorola compatible interface (680X0 family) con-
sists of eight address leads, eight bidirectional data
leads, select, read/write, data transfer acknowledge
and interrupt request.
For both the Intel and Motorola compatible interfaces,
registers 00H-24H are accessible if M13X is high and
registers 00H-3FH are accessible if M13X is low.
Address straps S6-S7 are active.
P(1-0) = H,L only address range 00H-3FH is acces-
High
High
Low
Low
P1
High
High
Low
Low
P0
Name/Function
Multiplexed (only allowed
when M13X lead is high)
Motorola Compatible
Intel Compatible
Multiplexed
Interface