MSM5718B70
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Serial Control Packet
The protocol also allows the channel master to issue an early termination instruction for a memory
read or write transaction. This is done using a Serial Control packet.
Bus- Bus-
Enable Ctrl
[0] — SCtrl
even
[0]
[0]
— SCtrl
odd
[1]
[1] — SCtrl
even
[2]
[1]
— SCtrl
odd
[3]
[2] — SCtrl
even
[4]
[2]
— SCtrl
odd
[5]
[3] — SCtrl
even
[6]
[3]
— SCtrl
odd
[7]
Time
BusData (8:0)
—
—
—
—
—
—
—
—
Fig. 10 Serial Control Packet Format1
Note: 1. A — in this diagram signifies that this pin is not used by this packet. If it is not used
by another packet, it is pulled to a logic zero value.
The value of the Serial Control field specifies whether the instruction should continue or terminate.
This is shown in the table below.
Table 5 Serial Control Field
Serial Control Field
SCtrl[7:0]
SCtrl[7:0]
Description
Continue
Terminate
Value
00000000
00100000
12