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DBGC—Debug Pin Configuration
This field configures the debug pin functionality. The default value is set by the hard reset
configuration word, as shown in Section 4.3.1.1 Hard Reset Configuration Word.
00 = IP_B[0:1]/IWP[0:1]/VFLS[0:1] functions as IP_B[0:1].
IP_B3/IWP2/VF2 functions as IP_B3.
IP_B4/LWP0/VF0 functions as IP_B4.
IP_B5/LWP1/VF1 functions as P_B5.
OP2/MODCK1/STS functions as OP2.
ALE_B/DSCK/AT1 functions as ALE_B.
IP_B2/AT2 functions as IP_B2.
IP_B6/DSDI/AT0 functions as IP_B6.
IP_B7/PTR/AT3 functions as IP_B7.
OP3/MODCK2/DSDO functions as OP3.
01 = IP_B[0:1]/IWP[0:1]/VFLS[0:1] functions as IWP[0:1].
IP_B3/IWP2/VF2 functions as IWP2.
IP_B4/LWP0/VF0 functions as LWP0.
IP_B5/LWP1/VF1 functions as LWP1.
OP2/MODCK1/STS functions as STS.
ALE_B/DSCK/AT1 functions as AT1.
IP_B2/AT2 functions as AT2.
IP_B6/DSDI/AT0 functions as AT0.
IP_B7/PTR/AT3 functions as AT3.
OP3/MODCK2/DSDO functions as OP3.
10 = Reserved.
11 = IP_B[0:1]/IWP[0:1]/VFLS[0:1] functions as VFLS[0:1].
IP_B3/IWP2/VF2 functions as VF2.
IP_B4/LWP0/VF0 functions as VF0.
IP_B5/LWP1/VF1 functions as VF1.
OP2/MODCK1/STS functions as STS.
ALE_B/DSCK/AT1 functions as AT1.
IP_B2/AT2 functions as AT2.
IP_B6/DSDI/AT0 functions as AT0.
IP_B7/PTR/AT3 functions as AT3.
OP3/MODCK2/DSDO functions as OP3.
DBPC—Debug Port Pins Configuration
This field determines the active pins for the development port. The default value is set by
the hard reset configuration word, as shown in Section 4.3.1.1 Hard Reset Configuration
Word.
00 = ALE_B/DSCK/AT1 functions as defined by DBGC.
IP_B6/DSDI/AT0 functions as defined by DBGC.
OP3/MODCK2/DSDO functions as defined by DBGC.
IP_B7/PTR/AT3 functions as defined by DBGC.
TCK/DSCK functions as DSCK.
MOTOROLA
MPC823e REFERENCE MANUAL
System Interface Unit
12-31
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