參數(shù)資料
型號(hào)： TSB43AA82PGE
廠商： TEXAS INSTRUMENTS INC
元件分類： 微控制器/微處理器
英文描述： 2 CHANNEL(S), 400M bps, SERIAL COMM CONTROLLER, PQFP144
封裝： PLASTIC, QFP-144
文件頁數(shù)： 116/146頁
文件大小： 770K
代理商： TSB43AA82PGE
45
Table 42. PHY Packet Format Descriptions
FIELD NAME
DESCRIPTION
XX
This field is the PHY configuration packet identifier. 00 = PHY configuration, 01 = link-on, 10 = self_ID, 11 = reserved
Root_ID
This field is the physical ID of the node to have its force_root bit set (only meaningful when R is set).
R
When R is set, the force_root bit of the node identified in root_ID is set and the force_root bit of all other nodes is cleared. When R
is cleared, Root_ID is ignored.
T
When T is set, the PHY_CONFIGURATION.gap_count field of all the nodes is set to the value in the Gap_cnt field.
Gap_cnt
This field contains the new value for PHY_CONFIGURATION.gap_count for all nodes. This value goes into effect immediately
upon receipt and remains valid after the next bus reset. After the second reset, Gap_cnt is set to 63h unless a new PHY
configuration packet is received.
A PHY configuration packet with R = 0 and T = 0 is reserved and is ignored when received.
4.3.2.1 Link-On Packet
Reception of the cable PHY packet, shown in Figure 44, causes a PH_EVENT.indication on LINK_ON. Link-on
packet definitions are given in Table 43.
0
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
0
1
PHY_ID
0
1
0
Logical inverse of first quadlet
1
Figure 44. Link-On Packet
Table 43. Link-On Packet Descriptions
FIELD NAME
DESCRIPTION
PHY_ID
Physical node identifier of the destination of this packet
4.3.2.2 PING Packet
The reception of the PING packet, shown in Figure 45, causes the node identified by the PHY_ID to transmit self_ID
packet(s) that reflect the current configuration and status of the PHY. Because of other actions, such as the receipt
of a PHY configuration packet, the self_ID packet transmitted may differ from that of the most recent self-identify
process. Field descriptions for the PING packet are shown in Table 44.
0
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
0
PHY_ID
0
Type(0)
0
1
0
Logical inverse of first quadlet
1
Figure 45. PING Packet
Table 44. PING Packet Descriptions
FIELD NAME
DESCRIPTION
PHY_ID
Physical node identifier of the destination of this packet.
Type
Extended PHY packet type
0 - indicates a PING packet
A PHY transmits a self-ID packet within the RESPONSE_TIME after the receipt of a PING packet.
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