
PRELIMINARY
XRT86SH328
161
REV. P1.0.6
28-CHANNEL DS1/E1 FRAMER/LIU WITH DS3 MUX & VT-MAPPER - SONET APPLICATIONS
`
0 - Does not configure the XRT86SH328 device to operate in the "VT-Mapper SONET/SDH Loop-back" Mode.
`
1 - Configures the XRT86SH328 device to operate in the "VT-Mapper SONET/SDH Loop-back" Mode.
BIT7 - Latch Error Count
A 0 to 1 transition within this bit-field commands the Test Pattern Receiver to latch its current Bit Error Count into Bits 6
- 0 (Test Pattern Error Count[14:8]) and BIT [7:0] (Test Pattern Error Count[7:0]) within the VT Mapper - Test Pattern
Detector Error Count Register (Address Locations = 0x0C16 and 0x0C17).
BIT6 - Insert Pattern Error
This bit-field is used to configure the VT-Mapper Test Pattern Generator block to insert a single bit-error into the
outbound VT data-stream. A 0 to 1 transition within this bit-field will command the VT-Mapper Test Pattern Generator
block to insert a single bit-error into the outbound VT data-stream.
Bits [5 - 0] - Reserved
F
IGURE
9. I
LLUSTRATION
OF
THE
F
UNCTIONAL
B
LOCK
D
IAGRAM
OF
THE
XRT86SH328
WITH
THE
VT-M
APPER
SONET/SDH L
OOP
-
BACK
PATH
DEPICTED
T
ABLE
217: G
LOBAL
C
ONTROL
- VT-M
APPER
B
LOCK
- T
EST
P
ATTERN
C
ONTROL
R
EGISTER
- B
YTE
1 (A
DDRESS
=
0
X
0C0E)
BIT7
BIT6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
Latch Error
Count
Insert Pat-
tern Error
Reserved
R/W
R/W
R/O
R/O
R/O
R/O
R/O
R/O
0
0
0
0
0
0
0
0
STS-1/
STS-3
Telecom
Bus
Interface
Transmit
STS-1/3
TOH
Processor
Block
Receive
STS-1/3
TOH
Processor
Block
Transmit
STS-1 POH
Processor
Block
Receive
STS-1 POH
Processor
Block
VT/TU
De-Mapper
Block
Receive
DS3
Framer
Block
Transmit
DS3
Framer
Block
M23
MUX
Block
M23
De-MUX
Block
Ingress
Direction
Receive
DS1/E1
Framer
Block
Egress
Direction
Receive
DS1/E1
Framer
Block
Ingress
Direction
Transmit
DS1/E1
Framer
Block
Egress
Direction
Transmit
DS1/E1
Framer
Block
Receive
DS1/E1
LIU
Block
Transmit
DS1/E1
LIU
Block
DS3/
STS-1
LIU
Interface
M12
MUX
Block
M12
De-MUX
Block
DS1/E1
Jitter
Atten
Block
DS1/E1 Channel 0
DS1/E1 Channel 0
DS2 Channel 0
From DS1/E1 Channels 1 - 27
From DS2 Channels 1 - 6
To DS2 Channels 1 - 6
From DS1/E1 Channels 1 - 3
To DS1/E1 Channels 1 - 3
To DS1/E1
Channels 1 - 27
VT/TU
Mapper
Block
DS2 Channel 0
VT Mapper SONET/SDH Loop-Back