參數(shù)資料
型號： MC68838FCC
廠商： MOTOROLA INC
元件分類： 微控制器/微處理器
英文描述： 1 CHANNEL(S), 125M bps, FDDI CONTROLLER, CQFP120
封裝： CERAMIC, QFP-120
文件頁數(shù)： 49/100頁
文件大?。?/td> 465K
代理商： MC68838FCC
3- 32
MC68838 USER’S MANUAL
MOTOROLA
PREV_SEND_LAST—Previous SEND_LAST
This bit has the value of the SEND_LAST bit in the previous (one before last) packet
request header
TOKEN_TYPE—Type of Token Required To Send This Frame
This field is the inverse of the token type field contained in the last packet request
header control bytes.
SYNCH_FRAME—Send Synchronous Frame
This bit has the inverse value of the SYNCH_FRAME bit contained in the last packet
request header control bytes.
IMMED_MODE—Ignore RING_OPERATIONAL for This Frame.
This bit has the inverse value of the lMMED_MODE bit contained in the last packet
request header control bytes.
SEND_FIRST—Always Send This Frame First
This bit has the inverse value of the SEND_FIRST bit contained in the last packet
request header control bytes.
SEND_LAST—Release Token after This Frame Is Sent
This bit has the inverse value of the SEND_LAST bit contained in the last packet
request header control bytes.
APPEND_CRC—Generate and Add an FCS Field to the Frame
This bit has the inverse value of the APPEND_CRC bit contained in the last packet
request header control bytes.
TOKEN_SEND—Type of Token To Send after This Frame Is Sent
This bit has the inverse value of the TOKEN_SEND bit contained in the last packet
request header control bytes.
EXTRA_FS—Send Extra Frame Status Indicators
This field is the inverse of the Extra_FS field contained in the last packet request header
control bytes.
3.7.3 Built-In Self-Test Signature Register (BIST_SIGNATURE)
The BIST signature register is a 16-bit read-only register that contains the resultant
signature after execution of the chip's self-test.
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