MPC8272ADS Freescale Semiconductor, MPC8272ADS Datasheet - Page 62

• Manufacturer Part Number: MPC8272ADS
• Description: KIT DEVELOPMENT MPC8272
• Manufacturer: Freescale Semiconductor
• Type: MPUr

Specifications of MPC8272ADS

• Contents: Board
• For Use With/related Products: MPC8272
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Flash Memory SIMM
of the Flash SIMM presence-detect lines (see Table 5-10), the debugger can establish (via
register OR0 in case CS0 is used or OR4 if CS4 is used) the correct number of wait-states
needed to access the Flash SIMM (considering 100MHz system clock frequency).
The control over the Flash is done with the GPCM and a dedicated CS0 (or CS4) region
which controls the whole bank. During hard - reset initialization
application S/W for that matter, reads the Flash Presence-Detect lines via BCSR and
determines how to program registers BR0 & OR0 (or BR4 & OR4), within which the size
and the delay of the region are determined.The Flash module may be disabled / enabled at
any time by writing ’1’ /’0’ respectively to the FlashEn bit in BCSR1. The Flash connection
scheme is shown in Figure 5-6.
.
1
i.e., initialization that follow the hard reset sequence at system boot.
CS0
CS4
Figure 5-6. FLASH SIMM Connection Scheme
BCSR
FLASH
CS
MPC8272ADS User Guide
ADDRESS(7:29)
DATA(0:31)
WE0
WE1
WE2
WE3
POE
PD1
PD2
PD3
PD4
PD5
PD6
PD7
CS1
CS2
CS3
CS4
D(31:0)
A(22:0)
WE0
WE1
WE2
WE3
POE
CS1
CS2
CS3
CS4
PD1
PD2
PD3
PD4
PD5
PD6
PD7
FLASH SIMM
1
, the debugger or any