Figure 11-61. ram array and signal generation, 1 ram words, Figure 11-62. the ram word – Freescale Semiconductor MPC8260 User Manual
Page 488: Ram words -70, Ram array and signal generation -70, The ram word -70, Figure 11-61
Memory Controller
MPC8260 PowerQUICC II Family Reference Manual, Rev. 2
11-70
Freescale Semiconductor
Figure 11-61. RAM Array and Signal Generation
11.6.4.1
RAM Words
The RAM word, shown in
, is a 32-bit microinstruction stored in one of 64 locations in the
RAM array. It specifies timing for external signals controlled by the UPM.
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Field CST1 CST2
CST3
CST4 BST1 BST2 BST3 BST4
G0L
G0H
G1T1 G1T3 G2T1 G2T3
Reset
—
R/W
R/W
Addr
(MCR[MAD] indirect addressing of 1 of 64 entries
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
Field G3T1 G3T3
G4T1/
DLT3
G4T3/
WAEN
G5T1 G5T3
REDO
LOOP EXEN
AMX
NA
UTA TODT LAST
Reset
—
R/W
R/W
Addr
(All 32 bits of the RAM word are addressed as shown in the address row above.)
Figure 11-62. The RAM Word
T1, T2, T3, T4
GPL0
GPL2 GPL3 GPL4 GPL5
External Signals Timing Generator (60x or Local)
RAM Array
CS Line
Selector
Byte Select
Packaging
CS[0–11]
BS
Current Bank
TSIZ, PS, A[30,31]
32 Bits
64
GPL1