NXP Semiconductors MPC5644A, Reference Manual, Page: 936 / 1735

Enhanced Time Processing Unit (eTPU2)
MPC5644A Microcontroller Reference Manual, Rev. 6
936 Freescale Semiconductor
T2ABD selects the destination from one of two register sets, shown in Table 24-82 . ABDE and T4BBS
control which set T2ABD field uses to select the destination.
1101 AS[23:0] = TCR2[23:0] 24 Reserved -
1110 AS[23:0] = ERTA[23:0] 24 Reserved -
1111 AS[23:0] = 0 24 Reserved -
1
T4ABS = 0101 with second register set also reads MatchA/B registers into ERTA/B
(see Section , Special T4ABS
source operation: Read match registers ).
2
CHAN_BASE is the selected channel’s base SPRAM address in channel relative address mode
(see Section ,
CHAN_BASE as a Source ).
3
ENGINE_BASE is the ETPU_ECR field ERBA shifted left nine positions.
Table 24-82. Destination selection – T2ABD
T2ABD
First register set Second register set
Selected register Size Selected register Size
0000 A[23:0] = AD[23:0] 24 C[23:0] = AD[23:0] 24
0001 SR[23:0] = AD[23:0] 24 LINK[7:0] = AD[7:0] 8
0010 ERTA[23:0] = AD[23:0]
1
1
T2ABD = 0010 with first register set also writes to MatchA or UDCM registers of the selected channel if field ERWA = 0
(see
Section 24.5.9.3.5, Write Channel Match and UDCM Registers ).
24 TPR[15:0] = AD[15:0] 16
0011 ERTB[23:0] = AD[23:0]
2
2
T2ABD = 0011 with first register set also writes to MatchB register of the selected channel if field ERWB = 0.
24 B[23:0] = AD[23:0] 24
0100 DIOB[23:0] = AD[23:0] 24 CHAN[4:0] = AD[4:0] 8
0101 P[15:0] = AD[15:0] 16 D[23:0] = AD[23:0] 24
0110 P[31:16] = AD[15:0] 16 RAR[12:0] = AD[12:0] 16
0111 P[23:0] = AD[23:0] 24 MACH[23:0] = AD[23:0] 24
1000 TCR1[23:0] = AD[23:0] 24 MACL[23:0] = AD[23:0] 24
1001 TCR2[23:0] = AD[23:0] 24 Reserved -
1010 P[31:24] = AD[7:0] 8 Reserved -
1011 P[23:16] = AD[7:0] 8 Reserved -
1100 P[15:8] = AD[7:0] 8 Reserved -
1101 P[7:0] = AD[7:0] 8 Reserved -
1110 TRR[23:0] = AD[23:0] 24 Reserved -
1111 no destination selected
3
3
if no destination is selected, ALU flags are updated, although the result is lost.
24 Reserved -
Table 24-81. A Source Selection – T4ABS
T4ABS
First register set Second register set
Selected register Size Selected register Size