Interphase Tech CONDOR 4221 User Manual download pdf (Page 101)

Transmit -- In-Line Gathers

Table 3-31. Transmit - In-Line Gathers

Number of Elements

This field contains the number of gather elements included in the IOPB. The only physical limit on this value is that

the size of the total IOPB to be processed by the controller must fit in the IOPB length field in the CQE. Practically,

however, this value should not exceed 4.

Total transfer count

This field contains the total number of bytes to be transferred for all elements. This value must match the sum of all

the element transfer counts.

Element transfer count

This field contains the number of bytes located at the physical address associated with this element.

Buffer address

This field contains the VMEbus physical address for the data associated with this gather element.

Transmit - In-Line Gathers

Offst 1514131211109876543210

0x06 Number of Elements

0x07 Total Transfer Count

0x08 Reserved

0x09 Element Transfer Count

0x0A Buffer Address (MSW)

0x0B Buffer Address (LSW)

0x0C Reserved

0x0D Buffer Address (MSW)

0x0F Buffer Address (LSW)

. . .

1 2 ... 96 97 98 99 100 101 102 103 104 105 106 ... 123 124

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Interphase Tech CONDOR 4221 User Manual Page 101