tdat04622 ETC-unknow, tdat04622 Datasheet - Page 69

• Manufacturer Part Number: tdat04622
• Description: Tdat Sonet/sdh 155/622/2488 Mbits/s Data Interfaces
• Manufacturer: ETC-unknow

Data Sheet
May 2001
Agere Systems Inc.
Pin Information
Table 6. Pin Descriptions—Microprocessor Interface Signals (continued)
* I
Table 7. Pin Descriptions—General-Purpose I/O Signals: Interface Signals
* I
u
u
AG5
AH2
AH3
AH4
C16
D16
C15
C14
D14
C13
D13
B16
A15
B15
E15
A14
B14
E14
B13
E13
Pin
Pin
D9
C9
E9
E8
= I
= I
d
d
= 50 kΩ, where I
= 50 kΩ, where I
ADDR[15]
ADDR[14]
ADDR[13]
ADDR[12]
ADDR[11]
ADDR[10]
ADDR[9]
ADDR[8]
ADDR[7]
ADDR[6]
ADDR[5]
ADDR[4]
ADDR[3]
ADDR[2]
ADDR[1]
ADDR[0]
Symbol
GPIO[3]
GPIO[2]
GPIO[1]
GPIO[0]
Symbol
ADS
R/W
DS
DT
u
u
= internal pull-up resistance and I
= internal pull-up resistance and I
(continued)
(5 V tolerant)
(5 V tolerant)
(5 V tolerant)
(5 V tolerant)
(5 V tolerant)
3.3 V
3.3 V
3.3 V
3.3 V
3.3 V
Type
3.3 V
Type
I
I/O*
I/O*
u
O
I
I
I
I
/O
u
u
u
u
Address Bus. This bus is used to address registers. [15:0] refers
to a 16-bit data bus (15 = MSB, 0 = LSB).
Address Strobe (Active-Low). This signal indicates the address
is valid for MPU access in the asynchronous mode, and transfer
start for the synchronous mode.
Read/Write. This signal is low to indicate a write operation and is
high to indicate a read operation.
Data Strobe (Active-Low). This signal used in the asynchronous
mode (MPMODE = 0) indicates that the data is valid for MPU
writes.
Data Transfer Acknowledge (Active-Low). This signal acknowl-
edges the data transfer cycle.
General-Purpose I/O. These programmable I/O pins may be
used to monitor or control external circuitry. These pins may also
be provisioned to cause an interrupt upon a change in their val-
ues.
d
d
= internal pull-down resistance.
= internal pull-down resistance.
Name/Description
Name/Description
155/622/2488 Mbits/s Data Interface
TDAT042G5 SONET/SDH
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