Motorola MPC823e - Page 433

Memory Controller
MOTOROLA MPC823e REFERENCE MANUAL 15-75
MEMORY CONTROLLER
15
MEMORY CONTROLLER
15
Figure 15-40. Asynchronous External Master Timing Example
cst4 Bit 0 0 0 0 0 0
cst1 Bit 1 0 0 0
cst2 Bit 2 0 0 1
cst3 Bit 3 0 0 1
bst4 Bit 4 1 1 0 0 0
bst1 Bit 5 1 0 0
bst2 Bit 6 1 0 1
bst3 Bit 7 1 0 1
≈
g4t4 Bit 18
g4t3 Bit 19
g5t4 Bit 20 1 1
g5t3 Bit 21 0 1 1
- Bit 22
- Bit 23
loop Bit 24 0 0 0 0 0
exen Bit 25 0 0 0 0 0
amx0 Bit 26 0 0 0 0 1
amx1 Bit 27 0 0 0 0 0
na Bit 28 0 0 0 0 0
uta Bit 29 1 0 0 0 1
todt Bit 30 0 0 0 0 1
last Bit 31 0 0 0 0 1
RSS RSS+1 WAIT WAIT RSS+2
CLKOUT/GCLK2
GCLK1
A[6:31]
AS
RD/ WR
D[0:31]
TA
CSx
BS_x
( CAS [0:3])
( RAS )
GPL_x5