參數(shù)資料
型號: VSC880TY
英文描述: Interface IC
中文描述: 接口IC
文件頁數(shù): 8/28頁
文件大?。?/td> 289K
代理商: VSC880TY
VITESSE
Data Sheet
VSC880
High Performance 16x16
Serial Crosspoint Switch
Page 8
G52191-0, Rev 4.2
01/05/01
VITESSE
SEMICONDUCTOR CORPORATION
741 Calle Plano
Camarillo, CA 93012
Tel: (800) VITESSE
FAX: (805) 987-5896
Email: prodinfo@vitesse.com
Internet: www.vitesse.com
disabled. All data transfer timing is asynchronous to REFCLK. The Interrupt Control Register is written by the user
to mask certain operations. If ICE is set HIGH, the INT output pin will go LOW if any error bit is set in the CERR
register. If RCE is set HIGH, the link will automatically start link initialization if any error bit is set in the CERR
register. The corresponding pins can be used for the DERR, TERR and LERR registers. If the INT signal goes LOW,
the Interrupt Status Register can be read to determine which of the four registers received an error.
The CDEL[3:0] bits are used to program a value for the cell clock delay (see section 3.0). The switch matrix
status information can be read from the C
N
and FI registers. A serial link can be forced to reinitialize by writing a
HIGH into the RSY register. A serial output can be logically disabled by writing a HIGH into the OE register. A serial
input can be forced to loop back directly to a serial output by writing a HIGH into the LPBK register. All registers are
cleared upon RESET. Also, the LERR, TERR, DERR and CERR registers are cleared on reading.
Figure 1: Status and Control Register Definition
CDATA[7:0] Bit Position
ADDR[5:0]
R/W
7
6
5
4
3
2
1
0
X 0 0 0 0 0
R
CE
DE
TE
LE
Interrupt Status Register
X 0 0 0 0 1
R/W
RCE
RDE
RTE
RLE
ICE
IDE
ITE
ILE
Interrupt Control Register
X 0 0 0 1 0
R/W
BIST
CDEL[3:0]
BIST and Count Register
X 0 0 0 1 1
X 0 0 1 0 0
R
CERR[7:0]
CCLK error register LSB
X 0 0 1 0 1
R
CERR[15:8]
CCLK error register MSB
X 0 0 1 1 0
R
DERR[7:0]
DRU error register LSB
X 0 0 1 1 1
R
DERR[15:8]
DRU error register MSB
X 0 1 0 0 0
R
TERR[7:0]
Error threshold register LSB
X 0 1 0 0 1
R
TERR[15:8]
Error threshold register MSB
X 0 1 0 1 0
R
LERR[7:0]
Link error register LSB
X 0 1 0 1 1
R
LERR[15:8]
Link error register MSB
0 0 1 1 0 0
R/W
C0[3:0]
C8[3:0]
Output0/Output8 Config
0 0 1 1 0 1
R/W
C1[3:0]
C9[3:0]
Output1/Output9 Config
0 0 1 1 1 0
R/W
C2[3:0]
C10[3:0]
Output2/Output10 Config
0 0 1 1 1 1
R/W
C3[3:0]
C11[3:0]
Output3/Output11 Config
0 1 0 0 0 0
R/W
C4[3:0]
C12[3:0]
Output4/Output12 Config
0 1 0 0 0 1
R/W
C5[3:0]
C13[3:0]
Output5/Output13 Config
0 1 0 0 1 0
R/W
C6[3:0]
C14[3:0]
Output6/Output14 Config
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