CX28398 Conexant Systems, CX28398 Datasheet - Page 214
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CX28398
Manufacturer Part Number
CX28398
Description
(CX28394 - CX28398) Quad/x16/Octal?T1/E1/J1 Framers
Manufacturer
Conexant Systems
Datasheet
1.CX28398.pdf
(305 pages)
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CX28398-23
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3.0 Registers
3.15 Data Link Registers
Data link test registers [addr 0BA-0BE] are for Conexant production test. Set to zero for normal operation.
DL_TEST1[3]
DL_TEST1[2]
DL_TEST1[1, 0]
Unused bits are reserved and should be written to 0.
DL_TEST2[5:0]
Unused bits are reserved and should be written to 0.
DL_TEST3[5:0]
DL_TEST4[6]
DL_TEST4[5]
DL_TEST4[4]
DL_TEST4[3]
DL_TEST4[2]
DL_TEST4[1]
DL_TEST4[0]
3-92
0BA—DLINK Test Configuration (DL_TEST1)
0BB—DLINK Test Status (DL_TEST2)
0BC—DLINK Test Status (DL_TEST3)
0BD—DLINK Test Control #1 or Configuration #2 (DL_TEST4)
Unused bits are reserved and should be written to 0.
—
—
—
—
7
7
7
7
DL_TEST4[6]
Clock Test—Zero for normal operation, where clocks controlled by DL1_CTL and DL2_CTL
[addr 0A6, 0B1]. When active high, clocks are always enabled.
Shadow Select—Report shadow pointers instead of normal read/write pointers.
FIFO Select: 00 = RDL1; 01 = RDL2; 10 = TDL1; 11 = TDL2
Read or Shadow Read Pointer—Reports selected FIFO read pointer current address.
Write or Shadow Write Pointer—Specifies selected FIFO write pointer address.
TFIFO1 Read Clear—Force transmit FIFO read pointer to empty.
TFIFO1 Write Clear—Force transmit FIFO write pointer to empty.
TFIFO1 Write—MPU data goes to specified write pointer address.
RFIFO1 Read Clear—Force receive FIFO read pointer to empty state (flush).
RFIFO1 Write Clear—Force receive FIFO write pointer to empty state (flush).
RFIFO1 Write—MPU data goes to specified write pointer address.
RFIFO1 Bypass—Pipe receive data.
—
—
—
6
6
6
6
DL_TEST2[5]
DL_TEST3[5]
DL_TEST4[5]
—
5
5
5
5
DL_TEST2[4]
DL_TEST3[4]
DL_TEST4[4]
—
4
4
4
4
Conexant
DL_TEST1[3]
DL_TEST2[3]
DL_TEST3[3]
DL_TEST4[3]
3
3
3
3
DL_TEST1[2]
DL_TEST2[2]
DL_TEST3[2]
DL_TEST4[2]
2
2
2
2
Quad/x16/Octal—T1/E1/J1 Framers
CX28394/28395/28398
DL_TEST1[1]
DL_TEST2[1]
DL_TEST3[1]
DL_TEST4[1]
1
1
1
1
DL_TEST1[0]
DL_TEST2[0]
DL_TEST3[0]
DL_TEST4[0]
100054E
0
0
0
0
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