Memory Controller
MPC561/MPC563 Reference Manual, Rev. 1.2
10-12
Freescale Semiconductor
10.3.1
Memory Devices Interface Example
describes the basic connection between the MPC561/MPC563 and a static memory device. In
this case CSx is connected directly to the chip enable (CE) of the memory device. The WE/BE[0:3] lines
are connected to the respective WE in the memory device where each WE/BE line corresponds to a
different data byte.
Figure 10-7. GPCM–Memory Devices Interface
, the CSx timing is the same as that of the address lines output. The strobes for the
transaction are supplied by the OE and the WE/BE lines (if programmed as WE/BE). When the ACS bits
in the corresponding ORx register = 00, CS is asserted at the same time that the address lines are valid.
NOTE
If CSNT is set, the WE signal is negated a quarter of a clock earlier than
normal.
Memory
Address
CE
OE
WE
Data
Address
CSx
OE
WE/BE
Data
MPC5xx
Summary of Contents for MPC561
Page 84: ...MPC561 MPC563 Reference Manual Rev 1 2 lxxxiv Freescale Semiconductor...
Page 144: ...Signal Descriptions MPC561 MPC563 Reference Manual Rev 1 2 2 46 Freescale Semiconductor...
Page 206: ...Central Processing Unit MPC561 MPC563 Reference Manual Rev 1 2 3 62 Freescale Semiconductor...
Page 302: ...Reset MPC561 MPC563 Reference Manual Rev 1 2 7 14 Freescale Semiconductor...
Page 854: ...Time Processor Unit 3 MPC561 MPC563 Reference Manual Rev 1 2 19 24 Freescale Semiconductor...
Page 968: ...Development Support MPC561 MPC563 Reference Manual Rev 1 2 23 54 Freescale Semiconductor...
Page 1144: ...Internal Memory Map MPC561 MPC563 Reference Manual Rev 1 2 B 34 Freescale Semiconductor...
Page 1212: ...TPU3 ROM Functions MPC561 MPC563 Reference Manual Rev 1 2 D 60 Freescale Semiconductor...
Page 1216: ...Memory Access Timing MPC561 MPC563 Reference Manual Rev 1 2 E 4 Freescale Semiconductor...