MPC8544DS Freescale Semiconductor, MPC8544DS Datasheet - Page 276

• Manufacturer Part Number: MPC8544DS
• Description: BOARD DEVELOPMENT SYSTEM 8544
• Manufacturer: Freescale Semiconductor
• Series: PowerQUICC III™r
• Type: MPUr

Specifications of MPC8544DS

• Contents: Board
• Processor To Be Evaluated: MPC8544E
• Data Bus Width: 32 bit
• Interface Type: Ethernet, I2C
• Operating Supply Voltage: - 0.3 V to + 1.1 V
• Leaded Process Compatible: Yes
• Peak Reflow Compatible (260 C): Yes
• Rohs Compliant: Yes
• For Use With/related Products: MPC8544
• For Use With: PPC8544EVTANG - EVAL MPC8544 783FCPBGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

L2 Look-Aside Cache/SRAM
The mapping of address bits and SRAM mode to a way select is shown below in
reflected in L2CTL[L2SIZ].
7-6
(single 256-KB SRAM if L2SIZ=256 KB)
L2CTL Register
L2SRBAR Registers
Physical Address Bits
Entire Array is SRAM
Description
0
No SRAM
MPC8544E PowerQUICC III Integrated Host Processor Family Reference Manual, Rev. 1
ADDR
Figure 7-4. Physical Address Usage for SRAM Accesses
Table 7-2. Way Selection for SRAM Accesses
18
ADDR
Bank select
Base Addr
21
20
20
L2SRAM
000
001
22
23
0
ADDR
Set index
(8 bits)
BAR 0 Hit
BAR hit compare
—
1
30
13
L2SRAM
Way Select
BAR 1 Hit
(3 bits)
Way
15
—
0
Addr[18–20]
31
Table
Byte select
(5 bits)
ADDR
000
001
010
011
100
101
110
111
Freescale Semiconductor
—
7-2. SRAM size is
35
31
Way Select
—
0
1
2
3
4
5
6
7