Freescale Semiconductor MPC8313E PowerQUICC II Pro Family Reference Manual page 701

Bits Names
46 PD
47 SD
48–59 Error
60–63 PAIR_PTR
Table 14-33 shows the values for G_STATE and S_STATE fields, which are the states for the gather and
scatter state machines).
MPC8313E PowerQUICC™ II Pro Integrated Processor Family Reference Manual, Rev. 2
Freescale Semiconductor
Table 14-32. CCPSR Field Descriptions (continued)
Primary EU done. The PRI_DONE bit reflects the state of the done interrupt from the assigned
primary EU.
0 The assigned primary EU done interrupt is inactive.
1 The assigned primary EU done interrupt is active indicating the EU has completed processing
and is ready to provide output data.
Secondary EU done. The SEC_DONE bit reflects the state of the done interrupt from the assigned
secondary EU.
0 The assigned secondary EU done interrupt is inactive.
1 The assigned secondary EU done interrupt is active indicating the EU has completed processing
and is ready to provide output data.
Channel error status. This field reflects the error status of the channel. When a channel error
interrupt is generated, this field will reflect the source of the error. The bits in the ERROR field are
registered at specific stages in the descriptor processing flow. Once registered, an error can only be
cleared only by resetting the channel or writing the appropriate registers to initiate the processing of
a new descriptor.
Table 14-35 lists the conditions which can cause a channel error and how they are represented in
the ERROR field.
Descriptor buffer register length/pointer pair. This field indicates which of the length/pointer pairs are
currently being processed by the channel.
the PAIR_PTR field.
Table 14-33. G_STATE and S_STATE Field Values
Value
0x0 GS_IDLE
0x1 GS_LOAD_POINTER
0x2 GS_LOAD_POINTER_DONE
0x3 GS_LOAD_NEXT_POINTER
0x4 GS_PROCESS_POINTER
0x5 GS_TRANS_BLOCK
0x6 GS_TRANS_BLOCK_DONE
0x7 GS_TRANS_BYTES
0x8 GS_TRANS_BYTES_DONE
0x9 GS_INC_PAIR_PTR
0xA GS_UPDATE
0xB GS_DONE
0xC GS_ERROR
0xD GS_RELOAD
0xE GS_TRANS_INBOUND
0xF GS_TRANS_INBOUND_DONE
Description
Table 14-36 shows the meaning of all possible values of
Gather State Machine:
Security Engine (SEC) 2.2
14-59