參數(shù)資料
型號： 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)： 144/146頁
文件大?。?/td> 770K
代理商： TSB43AA82PGE
85
8.4.1.2 Packet Transmission Through the Bulky Interface in Direct Mode
Setting DTHdIs (90h, bit 24) enables the header insert mode for data written to the DTF.
Set 1 on DTFEn (90h, bit 3) to enable DTF transmission.
Set 0 on DTHdIs (90h, bit 24) to disable header insertion.
Set 1 on DTDSel (90h, bit 29) to switch to bulky interface packet write mode.
Prepare transmit data with a packet header that complies with the DTF format defined in Section 8.2.2.
Write the packet through the bulky interface. Set BDIF2BDIF0 as shown in the following tables to indicate
the end of each packet. Packets are padded with 0s as necessary to satisfy the quadlet boundary. A packet
transmission starts when the BDIF flag indicates the last data.
8-Bit Bulky
BDIF[2:0]
COMMENT
011
8-bit bulky mode
101
Reset
NOTES:
1. Any signal setting not included in the table is reserved.
2. Signal values should not be modified during data transfer.
16-Bit Bulky
BDIF[2:0]
COMMENT
010
16-bit bulky mode
011
8-bit bulky mode
101
Reset
NOTES:
1. Any signal setting not included in the table is reserved.
2. Signal values should not be modified during data transfer.
At the completion of a packet transmission, DTAval is set, and an appropriate acknowledgement is
displayed on DTxAck.
When DTSpDis (90h, bit 7) is 1 or no split transaction has occurred, a DTFEnd interrupt is created to end
the transmission transaction. When DTSpDis (90h, bit 7) is 0 and a split transaction has occurred, a DTFEnd
interrupt is created to end the transaction after a response packet is received. In this case, a response
packet is received by the DRF.
8.4.1.3 Packet Transmission Through the Bulky Interface in Packetizer Mode
As a value on DTx header[0:3] (E8hF4h) is inserted as header, adding data completes the packet to be sent. If
DTHdIs is not set, all packet data including the header needs to be written. In this case, packet format is the same
as that for the ATF.
Following is the process for a fixed-length block data transmission through the bulky interface using write request for
block.
Set DTFEn (90h, bit 3) to 1 to enable DTF transmission.
Set DTHdIs (90h, bit 24) to 1 to enable auto header insertion.
Set DTDSel (90h, bit 29) to 1 to switch to bulky interface packet write mode.
Prepare transmit data without packet header.
Specify desired packet header on DTx Header[0:3].
Write block data through the bulky interface. Set BDIF2BDIF0 as shown in the following tables. The end
of each packet needs to be specified when the length of data does not satisfy a quadlet boundary.
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