CX28398 Conexant Systems, CX28398 Datasheet - Page 266
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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4.0 Electrical/Mechanical Specifications
4.6 System Bus Interface (SBI) Timing
Figure 4-16. SBI Timing—1536K Mode
4-18
NOTE(S):
(1)
(2)
(3)
(4)
(5)
Rising edge outputs and falling edge inputs shown. Refer to
RINDO/TINDO programmed high or low on a per-time slot basis (SBCn; addr 0E0-0FF).
TSYNC/RSYNC represents frame (TFSYNC/RFSYNC) and multiframe (TMSYNC/RMSYNC) offset.
Multiple offset values shown for illustration, refer to OFFSET controls (addr 0D2-0D3, 0D5-0D6).
X2CLK control bit located in SBI_CR (addr 0D0).
(5)
(5)
Transmit
TSBCKI
TSYNCO
TSYNCI
TSYNCO
TSYNCI
TSYNCO
TSYNCI
TPCMI
TSIGI
TINDO
TSBCKI
TSYNCO
TSYNCI
TSYNCO
TSYNCI
(3)
(2)
Receive
RSBCKI
RSYNCO
RSYNCI
RSYNCO
RSYNCI
RSYNCO
RSYNCI
RPCMO
RSIGO
RINDO
SIGFRZ
RSBCKI
RSYNCO
RSYNCI
RSYNCO
RSYNCI
4.6 System Bus Interface (SBI) Timing
(3)
(2)
(1)
A B C D
5 6 7 8
TS24
SIG24
Offset = 008 (TS1, Bit1)
1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 1 2 3 4
Offset = 008
Offset = 0C7
Conexant
(4)
TS1
Table 4-21
A B C D
SIG1
for other edge combinations.
Quad/x16/Octal—T1/E1/J1 Framers
TS2
A B C D
SIG2
CX28394/28395/28398
Offset = 018
Offset = 018
TS3
(4)
100054E
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