參數(shù)資料
型號： STLC5411
廠商： 意法半導(dǎo)體
英文描述： 2B1Q U Interface Device(2BIQ U接口裝置)
中文描述： 2B1Q U接口設(shè)備（2BIQ ü接口裝置）
文件頁數(shù)： 33/72頁
文件大?。?/td> 738K
代理商： STLC5411
IDENTIFICATION CODE (GCI)
The identification register is implemented at the
two addresses80 H and 90 H. All accessesat ad-
dresses 8x H will generate a read back interrupt
containing the addresses 80 H. Accesses at 9x H
performsexactly the samething that the 8X regis-
ter except the interrupt will be at address90 H.
Responsewill be according to the role herebelow:
identification request: 1 0 0 Y X X X X X X X X X X X X
identification response: 1 0 0 Y C C C C T T D D D D D D
with: - C = circuit revision (00000 for rev 2.x)
- T = device type (U = 00)
- D = device level identifying the manufacturer (001000 for
SGS-THOMSON Microelectronics)
In particular for 2.X version the identification re-
sponseis:
1 0 0 Y 0 0 0 0
0 0 0 0 1 0 0 0
GENERAL PURPOSE I/Os (GCI)
When GCInon-auto mode is selected, (NT or LT),
four programmable I/Os (IO1, IO2, IO3, IO4) are
provided and associated with CR5 register. Each
I/O is internalIy pulled-up with a 50k
resistor. In-
put or output can be selected for each pin inde-
pendently from the others by means of bits IO1,
IO2, IO3, IO4 in CR5. D1, D2, D3, D4 bits give
the logical value of the I/O pins respectively.
When a status change occurs on one of the input
pins, CR5 is sent on the monitor channel of the
GCI interface.
When GCI auto-mode is selected, two inputs
(ES1, ES2) and one output (EC) are provided in
NT1-AUTO and NT-RRAUTO configurations only.
ES1 and ES2 inputs drive the logical values of
ps1 and ps2 bits in the M4 channel on the line
while EC ouput normally high is driven low using
the eoc message ”operate 2B+D loopback. This
intends to providepower supply testing command
occuring simultaneously with the loopback com-
mand.
Table 5:
EOC message processing: local actions.
NT1-AUTO: (eoc address 000or 111)
Message
Operate 2B+D loopback
Code
Local action
0101 0000
Send ARL code on C/I channel to operate Loopback 2 in SID-GCI.
Forces EC outputlow
Performs transparent loopback on B1 channel identical to LB1
command in CR3
Performs transparent loopback on B2 channel identical to LB2
command in CR3
Performs corruption of the transmit CRC identical to CTC
command in CR4.
Noaction taken. Send back tothe Network unable tocomply message.
All outstanding EOC operations are reset.
All outstanding EOC operations maintained in their present state
Sent by UID to indicate that the message is not in its menu
Operate B1channel Loopback
0101 0001
Operate B2 channel Loopback
0101 0010
Request Corrupted CRC
0101 0011
Notify of Corrupted CRC
Return to Normal
Hold state
Unable to comply
0101 0100
1111 1111
0000 0000
1010 1010
NT-RR-AUTO: (eoc address 001 or 111)
Message
Operate 2B+D loopback
Code
Local action
0101 0000
Send ARL code on C/I channel to operate Loopback 1A in UID
configured in LT-RR-AUTO. Forces EC outputlow.
Performs transparent loopback on B1 channel identical to LB1
command in CR3
Performs transparent loopback on B2 channel identical to LB2
command in CR3
Performs corruption of the transmit CRC identical to CTC
command in CR4.
Noaction taken. Send back to theNetwork unable tocomply message.
All outstanding EOC operations are reset.
All outstanding EOC operations maintained in their present state
Sent by UID to indicate that the message is not in its menu
Operate B1channel Loopback
0101 0001
Operate B2 channel Loopback
0101 0010
Request Corrupted CRC
0101 0011
Notify of Corrupted CRC
Return to Normal
Hold state
Unable to comply
0101 0100
1111 1111
0000 0000
1010 1010
STLC5411
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