mpc8560vt667jb Freescale Semiconductor, Inc, mpc8560vt667jb Datasheet - Page 60

• Manufacturer Part Number: mpc8560vt667jb
• Description: Mpc8560 Powerquicc Iii Integrated Communications Processor
• Manufacturer: Freescale Semiconductor, Inc

RapidIO
Figure 41
13.2 RapidIO AC Electrical Specifications
This section contains the AC electrical specifications for a RapidIO 8/16 LP-LVDS device. The interface
defined is a parallel differential low-power high-speed signal interface. Note that the source of the transmit
clock on the RapidIO interface is
default setting makes the core complex bus (CCB) clock the source of the transmit clock. See Chapter 4
of the Reference Manual for more details on reset configuration settings.
13.3 RapidIO Concepts and Definitions
This section specifies signals using differential voltages.
figure shows waveforms for either a transmitter output (TD and TD) or a receiver input (RD and RD). Each
signal swings between A volts and B volts where A > B. Using these waveforms, the definitions are as
follows:
60
•
•
•
•
The transmitter output and receiver input signals TD, TD, RD, and RD each have a peak-to-peak
swing of A-B volts.
The differential output signal of the transmitter, V
The differential input signal of the receiver, V
The differential output signal of the transmitter or input signal of the receiver, ranges from
A – B volts to – (A – B) volts.
shows the DC driver signal levels.
–V + ΔV
–V – ΔV
Note: V
V
OD
OD
OD
OA
–V
= V
V
refers to voltage at output A; V
OA
MPC8560 Integrated Processor Hardware Specifications, Rev. 4.2
– V
Differential Specifications
OB
V
V
OA
OB
dependent o
(b)
Figure 41. DC Driver Signal Levels
–247 mV
–454 mV
454 mV
247 mV
R
(no m)
100 Ω
n the settings of the LGPL[0:1] signals at reset. Note that the
TERM
(a)
OB
refers to voltage at output B.
V
V
OHD
OLD
ID
, is defined as V
Figure 42
V
V
V
OD
OSCM
OHCM
OLCM
, is defined as V
0
= (V
Common-Mode Specifications
shows how the signals are defined. The
V
OA
+ V
RD
V
OB
OD
)/2
– V
= V
TD
(c)
OA
RD
– V
– V
.
1.375 V
1.125 V
TD
Freescale Semiconductor
OB
.
ΔV
OS