DS3172 Maxim Integrated, DS3172 Datasheet - Page 171

• 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

Register Name:
Register Description:
Register Address:
Bit #
Name
Default
Bit #
Name
Default
Bits 3 to 0: Transmit Trail Trace Identifier Address (TTIA[3:0]) – These four bits indicate the transmit trail trace
identifier byte to be read/written by the next memory access. Address 0h indicates the first byte of the transmit trail
trace identifier. Note: The value of these bits increments with each transmit trail trace identifier memory access
(when these bits are Fh, a memory access will return them to 0h).
Register Name:
Register Description:
Register Address:
Bit #
Name
Default
Bit #
Name
Default
Bits 7 to 0: Transmit Trail Trace Identifier Data (TTD[7:0]) – These eight bits are the transmit trail trace identifier
data. The transmit trail trace identifier address will be incremented whenever these bits are read or written (when
address location Fh is read or written, the address will return to 0h).
TTD7
15
15
--
--
--
0
7
0
0
7
0
TTD6
14
14
--
--
--
0
6
0
0
6
0
TT.TTIAR
Trail Trace Transmit Identifier Address Register
(0,2,4,6)EAh
TT.TIR
Trail Trace Transmit Identifier Register
(0,2,4,6)ECh
Reserved
TTD5
13
13
--
--
0
5
0
0
5
0
Reserved
TTD4
12
12
--
0
--
0
0
4
0
4
171
TTIA3
TTD3
11
11
--
--
0
3
0
0
3
0
TTIA2
TTD2
10
10
--
--
0
2
0
0
2
0
TTIA1
TTD1
--
--
9
0
1
0
9
0
1
0
TTIA0
TTD0
--
--
8
0
0
0
8
0
0
0