DS3163 Maxim Integrated Products, DS3163 Datasheet - Page 152

• Manufacturer Part Number: DS3163
• Description: IC TRPL ATM/PACKET PHY 400-PBGA
• Manufacturer: Maxim Integrated Products

Specifications of DS3163

• Applications: *
• Mounting Type: Surface Mount
• Package / Case: 400-BGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Figure 10-32. E3 PLCP Frame Format
Figure 10-33. E3 PLCP G1 Byte Format
10.8.7.1 Transmit E3 PLCP Trailer Generation
E3 PLCP trailer generation inserts the E3 PLCP frame trailer immediately following subframe 0 (POI equals 01h),
and generates the C1 byte. The trailer size is determined by the phase relationship of the G.751 E3 frame and
PLCP frame and by the transmit 8 kHz reference clock. The trailer size is variable in all frames. The trailer size can
be 17, 18, 19, 20, or 21 bytes. C1 is set to 3Bh, 4Fh, 75h, 9Dh, or A7h respectively, and the indicated number of
bytes (17 – 21) are added after subframe 0. The trailer bytes are all set to 11001100.
10.8.7.2 Transmit E3 PLCP Frame Generation
E3 PLCP frame generation receives the incoming PLCP payload data stream, and overwrites all of the overhead
byte locations.
The first two bytes of each subframe are overwritten with the frame alignment bytes A1 and A2, which have a value
of F6h and 28h respectively.
The third byte of subframe # is overwritten with POI byte # (P#). The value of P# is 00####0Pb (0 = a logic zero,
#### = the hexadecimal value of #, and P = the odd parity bit).
The fourth byte of subframes #8 – 6 are overwritten with the Z3 – Z1 bytes from the corresponding registers.
The fourth byte of subframe 5 is overwritten with the F1 byte from the corresponding register or the trail trace byte
input from the transmit trail trace controller. The F1 byte from the corresponding register, the trail trace byte input
A1
A1
A1
A1
A1
A1
A1
A1
A1
A2
A2
A2
A2
A2
A2
A2
A2
A2
MSB
REI
1
P8
P7
P6
P5
P4
P3
P2
P1
P0
REI - Remote Error Indicator
RAI - Remote Alarm Indicator
LSS - Link Status Signal
REI
M2
M1
G1
C1
Z3
Z2
Z1
F1
B1
REI
REI
G1
RAI
LSS
57 Columns
Seventh Cell
Second Cell
Fourth Cell
Third Cell
Ninth Cell
Eight Cell
Sixth Cell
LSS
First Cell
Fifth Cell
LSS
LSB
8
18 or 20
Trailer
Bytes
9 Rows