iSystem Leopard User manual

_ V1.5
Adapters
“Leopard” Nexus Emulation Board 257BGA – 100TQ
iSYSTEM, November 2018 1/5
Ordering code
IA257BGA100TQ-564XL
Target CPU package: QFP100
Original microcontroller in the QFP100 package has no Nexus port at all which may be a
significant drawback during the development and test process.
“Leopard” Nexus Emulation Adapter is based on the MPC5643L microcontroller in the
BGA257 package (emulation device), which also exposes 12-bit Nexus port. The Emulation
Adapter exhibits the same behaviour to the target as the original 100-pin microcontroller and
additionally provides the Nexus port, which allows advanced functionalities like trace,
profiler and code coverage.
A 100-pin solder part, which must be ordered separately under the IA100TQ-SOLDER
ordering code, is soldered to the target (PCB) instead of populating the original
microcontroller in a 100-pin QFP package. Then the Emulation Adapter, which acts as the
original microcontroller and additionally provides debug Nexus port, is connected on top.
Contact iSYSTEM sales representative for more details on available Nexus tools.

iSYSTEM, November 2018 2/5
All 100 pins of the “emulated” target microcontroller are accessible around the 257-pin
“emulation” device. When certain target microcontroller signal needs to be inspected e.g. by
an oscilloscope, below description helps locating it.
Pin 1 marker
1
98
95
91
88
85
81
76
99
94
92
89
86
83
80
77
1
2
3
100
97
96
93
90
87
82
79
78
75
73
72
4
5
6
71
7
8
9
70
69
10
11
12
68
67
66
13
65
64
63
14
62
15
16
17
18
19
57
56
20
21
22
55
23
24
25
54
53
28
34
37
40
43
45
47
50
52
51
27
31
33
36
39
42
46
49
26
29
30
32
35
38
41
44
48
100-pin layout –emulation adapter top view
Target microcontroller SPC56EL60 –100 LQFP pin configuration

iSYSTEM, November 2018 3/5
IA100TQ-SOLDER
Solder part, which is being soldered to the target.
PCB footprint size recommended by TET:
When it’s meant soldering the solder part manually, it’s highly recommended
prolonging the dimension E on the outer side (e.g. for 1.5-2 mm) during the PCB
design. Note that without this modification it’s very difficult to solder the solder part
manually.
IA100TQ-SOLDER dimensions
(Unit: mm)
A
B
C
D
E
K
L
16.5
1.125
17.0
17.0
2.15
19.55
19.55

iSYSTEM, November 2018 4/5
Jumper configuration
J1 and J2: clock source configuration
Jumpers J1 and J2 select clock source for the emulation device. Per default, both jumpers are
set to position 1-2, which yields clock source being used from the emulation adapter.
For the first time after receiving the emulation adapter, it is recommended that it’s tested with
this setting. Once it’s confirmed that it is operational, target clock use (J1 & J2 position 2-3)
can be tested.
Note that the emulation adapter may not operate when crystal circuit is used in the target.
Typical design guideline is that a crystal should be as close as possible to the microcontroller.
However, it may happen that the target crystal may not oscillate with the emulation adapter
since clock lines (XTAL, EXTAL) between the target and the emulation device on the
emulation adapter are prolonged. There should be no problem with the oscillator being used in
the target.
If an oscillator in the target is not an option and the target crystal doesn’t oscillate in
conjunction with the emulation adapter, clock from the emulation adapter must be used (J1 &
J2 position 1-2). In this case, a crystal circuit must be assembled on the emulation adapter.
Crystal circuit
Crystal circuit is located in the corner of the emulation adapter, next to the Nexus (Mictor)
connector.
Per default 10pF capacitors are populated for C3 and C4 and 40MHz crystal for Q1. Note that
these values are valid for 40MHz crystal only. If different crystal is used, appropriate
capacitors must be soldered (replace original ones).
Note: It has been confirmed that some quartz crystals don’t generate sufficient clock
amplitude for the MPC564xL microcontroller operation. Freescale MPC564xL reference
design uses the NX5032GA quartz and no problems have been noticed with the emulation
adapter when using this particular type.

iSYSTEM, November 2018 5/5
J3: target reset configuration
Jumper J3 connects the reset line between the emulation device and the target. By default J3 is
not populated.
U3: power selection
The U3 header row is used for power supply selection. Power supplies are organized in groups and the same
voltage must be supplied for each group.
Refer to the microcontroller user manual for more details which power supply designation belongs to which
power supply.
Signal direction
Signal
Pin
Pin
Signal
Signal direction
NC
1
2
NC
Target
VDD_HV_REG
3
4
CVDD_HV_REG
CPU
Target
VDD_HV_PMU
5
6
CVDD_HV_PMU
CPU
Target
VDD_HV_FLA
7
8
CVDD_HV_FLA
CPU
Target
VDD_HV_ADV
9
10
CVDD_HV_ADV
CPU
Target
VDD_HV_ADR1
11
12
CVDD_HV_ADR1
CPU
Target
VDD_HV_ADR0
13
14
CVDD_HV_ADR0
CPU
Target
VDD_HV_OSC
15
16
CVDD_HV_OSC
CPU
Target
VDD_HV_IO
17
18
CVDD_HV_IO
CPU
NC
19
20
NC
GND
21
22
GND
GND
23
24
GND
GND
25
26
GND
U3 signal description
By default all jumpers are set even though only eight jumpers (connecting pins 3-4, 5-6, 7-8, 9-10, 11-12. 13-14,
15-16, 17-18) affects the configuration. When jumpers are set, target power supply coming from the target gets
connected to the microcontroller residing on the emulation adapter. If a different power source is to be used (e.g.
in case of a standalone operation), jumpers must be removed and power source must be applied to
CVDD_HV_REG (pin 4), CVDD_HV_PMU (pin 6), CVDD_HV_FLA (pin 8), CVDD_HV_ADV (pin 10),
CVDD_HV_ADR1 (pin 12), CVDD_HV_ADR0 (pin 14), CVDD_HV_OSC (pin 16), CVDD_HV_IO (pin 18)
and GND (pins 21-26) signals.
iSYSTEM emulation adapter power supply adapter (ordering code: IEA-PS), which can provide 3.3V or 5V
voltage, connects on top of the emulation adapter directly to the U3 header row and allows standalone usage of
the emulation adapter. This is convenient when the target is not available or it’s not adjusted for the emulation
adapter connection yet.
IEA-PS (optional emulation adapter power supply

iSYSTEM
Notes:

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iSYSTEM
Disclaimer: iSYSTEM assumes no responsibility for any errors which may appear in this document, reserves the
right to change devices or specifications detailed herein at any time without notice, and does not make any
commitment to update the information herein.
iSYSTEM. All rights reserved.