MPC8544COMEDEV Freescale Semiconductor, MPC8544COMEDEV Datasheet - Page 354

• Manufacturer Part Number: MPC8544COMEDEV
• Description: KIT DEV EXPRESS MPC8544COM
• Manufacturer: Freescale Semiconductor
• Type: MPUr

Specifications of MPC8544COMEDEV

• Contents: Board
• For Use With/related Products: MPC8544
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

DDR Memory Controller
9.4.1.14
The DDR SDRAM clock control configuration register, shown in
adjustment.
Table 9-20
9.4.1.15
The DDR SDRAM initialization address register, shown in
used for the data strobe to data skew adjustment and automatic CAS to preamble calibration after POR.
9-30
Offset 0x130
Reset 0
9–31
Bits
0–4
5–8
W
R
0
CLK_ADJUST Clock adjust
0
describes the DDR_SDRAM_CLK_CNTL fields.
Name
—
—
—
0
DDR SDRAM Clock Control (DDR_SDRAM_CLK_CNTL)
DDR Initialization Address (DDR_INIT_ADDR)
MPC8544E PowerQUICC III Integrated Host Processor Family Reference Manual, Rev. 1
After the skew adjustment, this address will contain bad ECC data. This is
not important at POR, as all of memory should be subsequently initialized
if ECC is enabled (either by software or through the use of
DDR_SDRAM_CFG_2[D_INIT]).
If an HRESET has been issued after the DRAM is in self-refresh mode,
however, memory is not initialized, so this address should be written to
using an 8- or 32-byte transaction to avoid possible ECC errors if this
address could later be accessed.
0
0
4
Reserved
0000 Clock will be launched aligned with address/command
0001 Clock will be launched 1/8 applied cycle after address/command
0010 Clock will be launched 1/4 applied cycle after address/command
0011 Clock will be launched 3/8 applied cycle after address/command
0100 Clock will be launched 1/2 applied cycle after address/command
0101 Clock will be launched 5/8 applied cycle after address/command
0110 Clock will be launched 3/4 applied cycle after address/command
0111 Clock will be launched 7/8 applied cycle after address/command
1000 Clock will be launched 1 applied cycle after address/command
1001–1111 Reserved
Reserved
0
5
CLK_ADJUST
Table 9-20. DDR_SDRAM_CLK_CNTL Field Descriptions
Figure 9-15. DDR SDRAM Clock Control Configuration
1
0
Register (DDR_SDRAM_CLK_CNTL)
0
8
0
9
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
NOTE
Description
Figure
Figure
9-16, provides the address that will be
—
9-15, provides a 1/8-cycle clock
Freescale Semiconductor
Access: Read/Write
31
0