Figure-18 Manual Report Mode
參數(shù)資料
型號: IDT82V2042EPFG8
廠商: IDT, Integrated Device Technology Inc
文件頁數(shù): 31/83頁
文件大?。?/td> 0K
描述: IC LIU T1/J1/E1 2CH SHORT 80TQFP
標準包裝: 750
類型: 線路接口裝置(LIU)
規(guī)程: E1
電源電壓: 3.13 V ~ 3.47 V
安裝類型: 表面貼裝
封裝/外殼: 80-LQFP
供應商設備封裝: 80-TQFP(14x14)
包裝: 帶卷 (TR)
其它名稱: 82V2042EPFG8
IDT82V2042E
DUAL CHANNEL T1/E1/J1 SHORT HAUL LINE INTERFACE UNIT
FUNCTIONAL DESCRIPTION
37
December 12, 2005
Figure-18 Manual Report Mode
Note: It is recommended that users should do the followings within next round of error count-
ing: Read the data in CNT0 and CNT1; Reset CNT_TRF bit for the next ‘0’ to ‘1’ tran-
sition on this bit.
3.9.3
BIPOLAR VIOLATION AND PRBS ERROR INSERTION
Only when three consecutive ‘1’s are detected in the transmit data
stream, will a ‘0’ to ‘1’ transition on the BPV_INS bit (MAINT6, 12H...) gen-
erate a bipolar violation pulse, and the polarity of the second ‘1’ in the series
will be inverted.
A ‘0’ to ‘1’ transition on the EER_INS bit (MAINT6, 12H...) will generate
a logic error during the PRBS/QRSS transmission.
3.10 LINE DRIVER FAILURE MONITORING
The transmit driver failure monitor can be enabled or disabled by setting
DFM_OFF bit (TCF1, 05H...). If the transmit driver failure monitor is
enabled, the transmit driver failure will be captured by DF_S bit (STAT0,
16H...). The transition of the DF_S bit is reflected by DF_IS bit (INTS0,
18H...), and, if enabled by DF_IM bit (INTM0, 13H...), will generate an inter-
rupt. Whenthere is ashort circuit ontheTTIPn/TRINGn port, theoutput cur-
rent will be limited to 100 mA (typical), and an interrupt will be generated.
In hardware control mode, the transmit driver failure monitor is always
enabled.
A '0' to '1' transition
on CNT_TRF?
counting
Manual Report mode
(CNT_MD=0)
CNT0, CNT1
data in
counter
0
Y
N
next round
repeat the
same process
Read the data in CNT0,
CNT1 within next round1
Reset CNT_TRF for the
next '0' to '1' transition
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