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TNETA1585PCM Datasheet(PDF) 4 Page - Texas Instruments

Part No. TNETA1585PCM
Description  ATM TRAFFIC MANAGEMENT SCHEDULER DEVICE WITH RECEIVE UTOPIA AND COPROCESSOR INTERFACES
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Maker  TI1 [Texas Instruments]
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TNETA1585PCM Datasheet(HTML) 4 Page - Texas Instruments

 
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TNETA1585
ATM TRAFFIC MANAGEMENT SCHEDULER DEVICE
WITH RECEIVE UTOPIA AND COPROCESSOR INTERFACES
SDNS041A – NOVEMBER 1996 – REVISED JULY 1998
4
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
Terminal Functions
slave interface
TERMINAL
RESET
NAME
NO.
PGF
NO.
PCM
I/O
RESET
STATE
DESCRIPTION
SCAD5 SCAD0
33–36
29–32
I (TTL)
I
Slave control address SCAD5 SCAD0 consists of a 6 bit address
SCAD5–SCAD0
38–39
34–35
I (TTL)
I
Slave-control address. SCAD5–SCAD0 consists of a 6-bit address.
43–45
39 41
47–49
13
39–41
43–45
51–53
55 56
43 45
47–49
55–56
59–60
51–52
54 56
SCDATA31–
59 60
62
54–56
58 60
I/O
(TTL/
Hi Z
Slave control data SCDATA31 SCDATA0 consists of 32 bit data
SCDATA31
SCDATA0
64–66
68
0
58–60
62–64
(TTL/
CMOS)
Hi-Z
Slave-control data. SCDATA31–SCDATA0 consists of 32-bit data.
68–70
73 75
62 64
66–68
CMOS)
73–75
78–79
70–71
73 75
78 79
81–83
73–75
77 80
85–88
77–80
SCOE
42
38
I (TTL)
I
Slave-control output enable. SCOE is active low. When SCOE and SCSEL are
low, TNETA1585 reads are enabled.
SCSEL
31
28
I (TTL)
I
Slave-control select. SCSEL is active low. SCSEL enables the slave-control
interface.
SCWE
41
37
I (TTL)
I
Slave-control write enable. SCWE is active low. When SCWE and SCSEL are
low, TNETA1585 writes are enabled.
coprocessor interface
TERMINAL
RESET
NAME
NO.
PGF
NO.
PCM
I/O
RESET
STATE
DESCRIPTION
CLOCK
29
26
I (TTL)
I
Clock. The RCCX, TCCX, and DAX inputs are clocked into the device on the
rising edge of the clock input. This clock also is used as an operating clock
source for the TNETA1585.
COPFULL
96
88
O
(CMOS)
Low
Receive-FIFO full indication. COPFULL provides an indication of the status of
the receive UTOPIA interface FIFO. When the PHY/ATM input is low, COPFULL
goes high when the receive UTOPIA interface FIFO is full. When the PHY/ATM
input is high, COPFULL goes high when the FIFO is within 4 bytes of being full.
DAX
95
87
I (TTL)
I
Data-availability indication. DAX provides an indication to the device when data
is available on a particular channel or when the SAR has completed
segmentation of queued packets.
INTR
89
81
O
(CMOS)
High
Local interrupt. INTR provides an interrupt indication from the traffic
coprocessor to the SAR.
RCCX
92
84
I (TTL)
I
Receive-cell status indication. RCCX provides an indication to the device that
a cell has been received on the UTOPIA interface along with the receive channel
number assigned to the cell.
RESET
91
83
I (TTL)
I
Reset. When low, RESET resets the device.
TCCX
93
85
I (TTL)
I
Transmit-cell status indication. TCCX provides an indication to the device that
a cell has been transmitted from the SAR along with the channel number of that
cell.


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