pef20320 Infineon Technologies Corporation, pef20320 Datasheet - Page 14

• Manufacturer Part Number: pef20320
• Description: Multichannel Network Interface Controller For Hdlc With 32 Channels
• Manufacturer: Infineon Technologies Corporation

User’s Manual
Pin Definitions and Functions (cont’d)
Pin No.
P-MQFP-160-1
38, 34, 32, 27,
25, 20, 18, 14,
12, 7, 5, 1, 159,
153, 148, 146,
142, 138, 134,
132, 127, 125,
121, 119, 115,
113, 108, 106,
101, 99, 95
86
84, 93, 89, 98,
105, 112, 118,
124, 129, 131,
137, 140, 145,
152, 158, 4, 11 ,
17, 24, 31, 37,
57, 58, 63, 78
85
Symbol
D(31:0)
DS
PCHK
V
ADS
AS
DD
Output (O)
Input (I)
I/O
O
O
O
O
I
14
Function
Data Bus
The data bus lines are bidirectional tristate
lines which interface with the system’s
data bus.
Data Strobe (Motorola mode)
This signal indicates that valid data is to be
placed on the data bus (read cycle) or has
been placed on the data bus by the
MUNICH32 (write cycle).
Parity Check (Intel parity mode)
This signal indicates, whether the parity
bits of a read cycle are valid (PCHK high)
or invalid (PCHK low). See Chapter 2.2.1
for details.
Supply voltage 5 V
All pins must have the same level.
Address Status (Intel bus mode)
This signal indicates that a valid bus cycle
definition and address are being driven at
the pins.
Address Strobe (Motorola bus mode)
A valid address is transmitted on the
address bus at the falling edge of AS.
In both cases this signal is active low and
tristate when unused.
5%
Introduction
PEB 20320
01.2000