Rainbow Electronics DS3170 - Manual (Page 22)

DS3170 DS3/E3 Single-Chip Transceiver
22 of 233
6.4 DS3/E3 Unframed POS/NEG Mode
The frame mode determines the CLAD clock rate if used as the transmit clock and selects B3ZS or HDB3.
FRAME MODE FM[2:0]
DS3 Unframed 100
E3 Unframed 110
LIU MODE
LM[2:0] TZSD & RZSD
TLEN
PORT.CR2
LIU Off, B3ZS or HDB3 000 0 1
LIU Off, AMI 000 1 1
Figure 6-4. DS3/E3 Unframed POS/NEG Mode
TDEN
RLCLK
TPOS
TNEG
TLCLK
IEEE P1149.1
JTAG Test
Access Port
D
[15:
0]
A[
8:
1]
ALE
CS
RD
/DS
WR
/R
/W
Serial or Parallel
uP Inteface
JTD
O
JTC
LK
JTM
S
JTD
I
JTR
ST
LLB DL
B
RSER
RCLKO
RDEN
TAIS
TUA1
Clock Rate
Adapter
RE
FCLK MOD
E
IN
T
GP
IO[8
:1
]
WI
D
T
H
RDY
TCLKO
PL
B
UA1
GEN
RPOS
RNEG
RST
B3ZS/
HDB3
Encoder
B3ZS/
HDB3
Decoder
Serial Interface Mode:
SPI
A[
0]
/B
SW
AP
SP
I
TCLKI
TSER
TX
BERT
RX
BERT
AL
B
(SCLK, MOSI, and MISO)