MPC852TADS Freescale Semiconductor, MPC852TADS Datasheet - Page 74

• Manufacturer Part Number: MPC852TADS
• Description: Networking Modules & Development Tools ADS BOARD FOR 852
• Manufacturer: Freescale Semiconductor
• Type: Network Controller & Processorr

Specifications of MPC852TADS

• Memory Type: Flash, SDRAM
• Interface Type: RS-232, Ethernet, PCMCIA
• Operating Voltage: 1.8 V to 3.3 V
• Operating Temperature Range: 0 C to + 30 C
• Board Size: 233 mm x 150 mm
• Product: Modules
• For Use With/related Products: MPC852T
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

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A. The FRZ line should be connected to both VFLS(0:1) pins on the debug port connector when a target system needs
B. The configuration is divided into two parts, the first is sampled three system-clock cycles prior to the rising edge of
4•13
The MPC852TADS has a BDM Debug interface (10 pin generic header connector) to enable debugging through
external host. The signals are described in detail in
4•13•1
The standard debug port connector pins are needed to support debug port controllers for MPC852TADS.
4•13•1•1
These pins indicate to the debug port controller whether or not the MPC is in debug mode. When both VFLS(0:1) are
at’1’, the MPC is in debug mode. As these lines may serve varying functions for the MPC the FRZ must be selected
on either the ADS or target system
4•13•1•2
This is the MPC’s Hard Reset bidirectional signal. When asserted (low) the MPC enters a Hard Reset sequence that
includes Hard Reset configuration. The signal is made redundant with the MPC852T debug port controller as there is
a Hard Reset command integrated into the debug port protocol. However, for compatibility with existing MPC5XX
boards and software, the local debug port controller uses this signal.
4•13•1•3
This is the MPC852T’s Soft Reset bidirectional signal whereas on the MPC5XX it is an output. The debug port con-
figuration is sampled and determined on the rising-edge
MPC852T this bidirectional signal may be driven externally to generate a Soft Reset sequence. Regarding the
MPC852T debug port controller, the signal is redundant as there is a Soft Reset command integrated into the debug
port protocol. However, for compatibility with existing MPC5XX boards and software, the local debug port controller
uses this signal.
4•13•1•4
The debug port controller sends its data to the MPC via the DSDI signal. The DSDI also serves a role during Soft
to use either of the alternative VFLS(0:1) functions.
SRESET* while the second is sampled eight clocks after the rising edge.
BDM Debug Port
Standard MPC852T Debug Port Connector Pin Description
VFLS(0:1)
HRESET*
SRESET*
DSDI: Debug Port Serial Data In
FIGURE 4-6 Standard BDM Debug Port Connector
Freescale Semiconductor, Inc.
For More Information On This Product,
A
.
Go to: www.freescale.com
Functional Description
HRESET
MPC852TADS - User’s Manual
VFLS0
GND
GND
VDD
FIGURE 4-6 "Standard BDM Debug Port Connector"
7
3
5
9
1
B
of SRESET* (for both processor families). On the
4
8
2
6
10
DSDO
SRESET
DSCK
DSDI
VFLS1
Release 1.0
below.