T8207-BAL-DT Agere Systems, Inc., T8207-BAL-DT Datasheet - Page 16

• Manufacturer Part Number: T8207-BAL-DT
• Description: CelXpres ATM interconnect. Dry-bagget, tape & reel .
• Manufacturer: Agere Systems, Inc.

CelXpres T8207
ATM Interconnect
2
Table 4. Microprocessor Interface Pins
16
rdy_dtack*
Symbol
mot_sel
wr*_ds*
a[0]/ale
rd*_rw*
int_irq*
a[7:1]
d[7:0]
Pin Description
mux
sel*
W6, Y6, V7, W7,
W10, V10, Y10,
U9, V9 W9, Y9,
Y7, V8, W8
W12
W13
Ball
V12
U12
Y13
Y11
Y12
U11
Y8
(continued)
Reset
Value
0/1
—
—
—
—
—
—
—
Z
Z
Type
I/O
O
O
I
I
I
I
I
I
I
Microprocessor Port Address Lines. Most significant
7 bits of the address bus. TTL compatible input, 5 V tolerant.
Microprocessor Port Address 0/Address Latch Enable.
Least significant bit of the address bus in nonmultiplexed
mode or address latch enable in multiplexed mode.
Microprocessor Port Data Lines. 6 mA drive, TTL compat-
ible I/O, 5 V tolerant.
Microprocessor Chip Select (Active-Low). TTL compati-
ble input, 5 V tolerant.
Microprocessor Write/Data Strobe. Active-low write
enable in Intel mode. Active-low data strobe in Motorola
mode. TTL compatible input, 5 V tolerant.
Microprocessor Read/Write. Active-low read enable in
Intel mode, or read/write* enable in Motorola mode, where
read is active-high and write is active-low. TTL compatible
input, 5 V tolerant.
CPU Interrupt. Active-high in Intel mode and active-low in
Motorola mode. 4 mA drive, TTL compatible output.
Ready/Data Transfer Acknowledge. Active-high ready sig-
nal in Intel mode and active-low data transfer acknowledge
in Motorola mode. Indicates access complete. 6 mA drive,
TTL compatible output.
Intel / Motorola Selection. ‘0’ = Intel , ‘1’ = Motorola . TTL
compatible input, 5 V tolerant.
Microprocessor Multiplex Select. Active-high for multiplex
mode. TTL compatible input, 5 V tolerant.
Name/Description
Advance Data Sheet
September 2001
Agere Systems Inc.