ibm3206k0424 ETC-unknow, ibm3206k0424 Datasheet - Page 517

• Manufacturer Part Number: ibm3206k0424
• Description: Ibm Processor For Network Resources
• Manufacturer: ETC-unknow

Preliminary
“Select A Clock" Selection Matrix
pnr25.chapt05.01
August 14, 2000
HS RX Rec Diff Osc
RX Rec Diff Osc
TX/8 Diff Osc
RX/8 Diff Osc
480 ns
240 ns
120 ns
60 ns
30 ns
15 ns
Reserved
TX Osc
RX Osc
MPEG OSC
OFF
Control Bits
Frequency Base
Bit(s)
3-0
Clock
Encoded Control for Receive
Logic (LINKR) and Sonet Framer
(FRAMR)
X
X
X
X
X
X
X
X
X
X
15-12
Name
CELLO
BCO
CCO
X
X
X
X
X
X
X
X
X
X
11-8
Below is the encoded value of the bits that select a given clock. Always refer to “Select
A Clock" Selection Matrix below for inputs supported for each clock out type.
X’0’
X’1’
X’2’
X’3’
X’4’
X’5’
X’6’
X’7’
X’8’
X’9’
X’A’
X’B’
X’C’ Use the differential Transmit clock divided by eight.
X’D’ Use the differential Receiver clock (chopped).
X’E’
MPEGT
BMT
CMT
Turn this clock off.
Use the external MPEG oscillator.
Use the external RX clock.
Use the external TX clock.
Reserved
Use the internal 15 ns clock. Assumes 33 or 66MHz PCI clock.
Use the internal 30 ns clock. Assumes 33 or 66MHz PCI clock.
Use the internal 60 ns clock. Assumes 33 or 66MHz PCI clock.
Use the internal 120 ns clock. Assumes 33 or 66MHz PCI clock.
Use the internal 240 ns clock. Assumes 33 or 66MHz PCI clock.
Use the internal 480 ns clock. Assumes 33 or 66MHz PCI clock.
Use the differential Receiver clock divided by eight.
Use the differential high speed receiver clock (divided by 8 and 50% duty cycle).
X
X
X
X
X
X
X
X
X
X
X
X
7-4
LINKT(TX)
BTX
CTX
RTX
Description
IBM Processor for Network Resources
X
X
X
X
X
X
X
X
X
X
X
X
3-0
LINKR(RX)
CRX
RRX
Reset and Power-on Logic (CRSET)
BRX
X’E’
X’D’
X’C’
X’B’
X’A’
X’9’
X’8’
X’7’
X’6’
X’5’
X’4’
X’3’
X’2’
X’1’
X’0’
Page 517 of 676
IBM3206K0424
Nibble Code