MPC8544COMEDEV Freescale Semiconductor, MPC8544COMEDEV Datasheet - Page 1191

• 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

19.4.1.25 SerDes 2 Control Register 1 (SRDS2CR1)
Shown in
of the SerDes 1 signals. Note that reserved fields with non-zero reset values are for internal use only and
their values should be preserved.
Table 19-28
Freescale Semiconductor
Offset 0xE_0F10
Reset 0 0 0 1 0 0
13–15
16–19
7–15
Bits
W
6
R
0
Figure
describes the bit settings of SRDS2CR1.
MPC8544E PowerQUICC III Integrated Host Processor Family Reference Manual, Rev. 1
XMITEQA
19-25, SRDS2CR1 contains the control bits used for adjusting the transmit equalization
LSTSCD
Name
—
—
5
LSTSCD
Figure 19-25. SerDes 2 Control Register 1 (SRDS2CR1)
0
6
Reserved
Loss of signal threshold level selection for lanes c and d of SerDes 2 in SGMII mode.
This bit, when set, increases the SerDes 2 lanes c and d receiver’s Vrx_diffp-p level on
electrical idle detection. Refer to the VIos parameter (Loss of signal threshold) in the DC
Receiver Electrical Characteristics of section “SGMII DC Electrical Characteristics” in
MPC8544E PowerQUICC III Integrated Processor Hardware Specifications , for the
details of how the LSTS bit affects the loss of signal threshold level.
Reserved
Transmit equalization selection bus for SerDes 2 lane a (SD2_RX0/TX0)
Default value = 4’b0100
MSB (bit 16) is the differential peak-to-peak amplitude selection:
0 = Vdd-diff-pk=pk
1 = 5/6 Vdd-diff-pk=pk
LSBs (bits 17:19) are the equalization amplitude selection:
000 = No equalization
001 = 1.09x relative amplitude
010 = 1.2x relative amplitude
011 = 1.33x relative amplitude
100 = 1.5x relative amplitude
101 = 1.71x relative amplitude
110 = 2.0x relative amplitude
111 = reserved
Table 19-28. SRDS2CR1 Field Descriptions
7
1 0 0 0 0 0 0 0 0 0
15 16
XMITEQA
1
Description
0
19 20
0
0
XMITEQCD
1
0
23 24
0
0
0 0 1 1 0 0
Access: Read/Write
Global Utilities
19-25
31
0