MPC8536E-ANDROID Freescale Semiconductor, MPC8536E-ANDROID Datasheet - Page 1189

• Manufacturer Part Number: MPC8536E-ANDROID
• Description: HARDWARE/SOFTWARE ANDROID OS
• Manufacturer: Freescale Semiconductor
• Series: PowerQUICC ™r
• Type: MPUr

Specifications of MPC8536E-ANDROID

• Contents: Board
• For Use With/related Products: MPC8536
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

The fields of the PCI Express IP block core clock ratio register are described in
As an example of programming PEX_GCLK_RATIO, consider the case where the actual PCI Express
controller clock is 250 MHz, the ratio of the actual clock to the default clock (333 MHz) is 3:4. that is, the
default core clock has to be multiplied by the ratio (3/4, which is equivalent to 12/16). So the register has
to be programmed with the decimal numerator value 12 or 0x0000_000C.
17.3.10.15 PCI Express Power Management Timer Register—0x450
The PCI Express power management timer register, shown in
time-in values for entering L0s and L1 power management states.
Freescale Semiconductor
Offset 0x440
Reset 0
Offset 0x450
Reset 0
W
R
31–6
Bits
5–0
W
R
31
31
0
Clock Ratio
Figure 17-115. PCI Express IP Block Core Clock Ratio Register (PEX_GCLK_RATIO)
0
Numerator
Figure 17-116. PCI Express Power Management Timer Register (PEX_PM_TIMER)
0
Name
0
—
0
0
—
0
MPC8536E PowerQUICC III Integrated Processor Reference Manual, Rev. 1
0
0
Reserved
The numerator of the ratio of the actual PCI Express controller clock frequency used to the
default core clock frequency of 333 MHz. The denominator of the ratio is fixed at 16.
The default value of this register is 0x10 (16 decimal), which corresponds to a ratio of 1:1 (or
16/16)
0
0
0
Table 17-112. PEX_GCLK_RATIO Field Descriptions
0
24 23
0
0
0
0
0
0
0
0
L1_WAIT_PERIOD
1
0
0
—
0
1
0
0
0
0
1
0
Description
1
0
Figure
0
0
12 11
1
0
0
0
17-116, is used to program the
1
0
1
0
1
0
PCI Express Interface Controller
L0s_TIME_IN
Table
1
0
1
6
0
17-112.
0
Access: Read/Write
5
0
Access: Read/Write
0
1
Clock Ratio
Numerator
1
0
1
0
1
0
17-93
0
0
0
0