DS3172 Maxim Integrated, DS3172 Datasheet - Page 59

• Manufacturer Part Number: DS3172
• Description: Network Controller & Processor ICs Dual DS3/E3 Single Chip Transceiver
• Manufacturer: Maxim Integrated

Specifications of DS3172

• Part # Aliases: 90-31720-000

Table 10-9. Receive Framer Pin Signal Timing Source Select
10.2.4 Clock Structures On Signal IO Pins
The signals on the input pins (TSOFIn, TSERn) can be used with any of the clock pins for setup/hold timing on
clock input and output pins. There will be a flop at each input whose clock is connected to the signal from the input
or output clock source pins with as little delay as possible from the signal on the clock IO pins. This means using
the input clock signal before the delays of the internal clock tree to clock the input signals, and using the output
clock signals used to drive the output clock pins to clock the input signals.
The signals on the output pins (TPOSn/TDATn, TNEGn, TSOFOn/TDENn, RSERn, RSOFOn/RDENn) can be with
any of the clock sources for delay timing. There will be a flop at each output whose clock is connected to the signal
from the input or output clock source pins with as little delay as possible from the signal on the clock IO pins. This
means using the input clock signal before the delays of the internal clock tree to clock the input signals, and using
the output clock signals used to drive the output clock pins to clock the input signals.
1
1
1
0
0
0
0
0
0
0
0
0
DLB (100) or LLB&DLB(110)
DLB (100) or LLB&DLB(110)
not LLB, DLB or PLB (00X)
PLB (011) or DLB (100) or
PLB (011) or DLB (100)
not LLB&DLB(110)
not LLB&DLB(110)
not DLB (100) and
not DLB (100) and
DLB&LLB (110)
LBM[2:0]
ALB(001)
LLB (010)
XXX
XXX
XXX
X
X
X
X
X
X
0
1
0
1
0
1
X
X
X
X
X
X
X
X
0
X
X
1
59
0
0
0
0
0
1
1
1
1
0
1
1
Valid Timing to These Clock Pins
RCLKOn, TLCLKn, TCLKOn
RLCLKn
No valid timing to any input clock pin
RCLKOn, TLCLKn, TCLKOn
RCLKOn, TLCLKn, TCLKOn
RCLKOn, TCLKOn
RCLKOn, TLCLKn
RCLKOn
No valid timing to any input clock pin
TCLKIn
RLCLKn
No valid timing to any input clock pin