MPC8313E-RDB Freescale Semiconductor, MPC8313E-RDB Datasheet - Page 92
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MPC8313E-RDB
Manufacturer Part Number
MPC8313E-RDB
Description
BOARD PROCESSOR
Manufacturer
Freescale Semiconductor
Series
PowerQUICC II™ PROr
Type
MCUr
Datasheets
1.MPC8313CZQAFFB.pdf
(100 pages)
2.MPC8313E-RDBB.pdf
(52 pages)
3.MPC8313E-RDBB.pdf
(2 pages)
Specifications of MPC8313E-RDB
Contents
Reference Design Board, Software and Documentation
Termination Type
SMD
Supply Voltage Max
1.05V
Tool / Board Applications
Wired Connectivity-LIN, CAN, Ethernet, USB
Mcu Supported Families
POWERQUICC II PRO
Rohs Compliant
Yes
Filter Terminals
SMD
Silicon Manufacturer
Freescale
Silicon Core Number
MPC83xx
Kit Application Type
Communication & Networking
Application Sub Type
Ethernet
Core Architecture
Power Architecture
Silicon Family Name
PowerQUICC II PRO
For Use With/related Products
MPC8313E
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
System Design Information
22.8
Pull-Up Resistor Requirements
The MPC8313E requires high resistance pull-up resistors (10 kΩ is recommended) on open drain type pins
2
including I
C, Ethernet management MDIO, and IPIC (integrated programmable interrupt controller).
Correct operation of the JTAG interface requires configuration of a group of system control pins as
demonstrated in
Figure
61. Care must be taken to ensure that these pins are maintained at a valid deasserted
state under normal operating conditions because most have asynchronous behavior and spurious assertion,
which give unpredictable results.
Refer to the PCI 2.2 Specification, for all pull-ups required for PCI.
22.9
JTAG Configuration Signals
Boundary scan testing is enabled through the JTAG interface signals. The TRST signal is optional in
IEEE 1149.1, but is provided on any Freescale devices that are built on Power Architecture technology.
The device requires TRST to be asserted during reset conditions to ensure the JTAG boundary logic does
not interfere with normal chip operation. While it is possible to force the TAP controller to the reset state
using only the TCK and TMS signals, systems generally assert TRST during power-on reset. Because the
JTAG interface is also used for accessing the common on-chip processor (COP) function, simply tying
TRST to PORESET is not practical.
The COP function of these processors allows a remote computer system (typically, a PC with dedicated
hardware and debugging software) to access and control the internal operations of the processor. The COP
interface connects primarily through the JTAG port of the processor, with some additional status
monitoring signals. The COP port requires the ability to independently assert TRST without causing
PORESET. If the target system has independent reset sources, such as voltage monitors, watchdog timers,
power supply failures, or push-button switches, then the COP reset signals must be merged into these
signals with logic.
The arrangement shown in
Figure 61
allows the COP to independently assert HRESET or TRST, while
ensuring that the target can drive HRESET as well. If the JTAG interface and COP header are not used,
TRST should be tied to PORESET so that it is asserted when the system reset signal (PORESET) is
asserted.
The COP header shown in
Figure 61
adds many benefits—breakpoints, watchpoints, register and memory
examination/modification, and other standard debugger features are possible through this interface—and
can be as inexpensive as an unpopulated footprint for a header to be added when needed.
The COP interface has a standard header for connection to the target system, based on the 0.025"
square-post, 0.100" centered header assembly (often called a Berg header).
There is no standardized way to number the COP header shown in
Figure
61; consequently, many different
pin numbers have been observed from emulator vendors. Some are numbered top-to-bottom then
left-to-right, while others use left-to-right then top-to-bottom, while still others number the pins counter
clockwise from pin 1 (as with an IC). Regardless of the numbering, the signal placement recommended in
Figure 61
is common to all known emulators.
™
MPC8313E PowerQUICC
II Pro Processor Hardware Specifications, Rev. 3
92
Freescale Semiconductor