PTC04-DB-922XX Datasheet, PDF (5/8 Pages) Melexis Microelectronic Systems – Daughter Board for Melexis PTC devices

PTC04-DB-922xx
Daughter Board for Melexis PTC devices
2.3. Daughter board Connectors
The PTC04 main board has two connectors to the interface with the application. The PTC allows adding a
full PCB in between (Daughter Board). This daughter board can be mounted on the two connectors. In
some exceptional cases, a daughter board contains only a few wires from the Analogue connector to the
application connector. The pins on of the connectors are described below.
DIGITAL DB
CONNECTOR
A0
A2
A4
A6
D0
D2
D4
D6
Rd
SCL
F8
FA
FC
FE
PE0
PE2
PE4
PE6
DGND
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
40 Pin Header
A1
A3
A5
A7
D1
D3
D5
D7
Wr
Reset
SDA
F9
FB
FD
FF
PE1
PE3
PE5
PE7
+5V_Digital_Supply
ANALOG DB
CONNECTOR
ISENSE_PPS1
ISENSE_PPS2
ISENSE_PPS3
ISENSE_PPS4
ANA.COMP0
ANA.COMP2
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
48 pin header
AGND
Meas_Line_P1
Meas_Line_P2
Meas_Line_P3
Meas_Line_P4
Meas_Line_N1
Meas_Line_N2
Meas_Line_N3
Meas_Line_N4
+36V_SUPPLY
+2.5V_REF_SUPPLY
VOUT_PPS1
VOUT_PPS2
VOUT_PPS3
VOUT_PPS4
ANA.COMP1
ANA.COMP3
AGND
2.3.1. Digital DB Connector (40 Pins)
Mainly, the digital connector is meant to expand the programmer to extra needs. Address lines A0-A7
together with the Map Select Lines F8-FF allows to direct access an area of 2 K. Examples would be
adding a simple addressed I/O register by using the selection lines. If more complexity is needed, a full
FPGA can be mounted on the DB board
Pins
1–8
9 – 16
17
18
20
Names
A0 – A7
D0 – D7
Rd
Wr
Reset
21-22
23-30
31-38
SCL / SDA
F8,F9,…,FF
Port E
39
DGND
40
+5V Digital
Description
Address lines
Data Lines active during Rd or Wr signals
Read: A negative pulse will indicate a sampling of the data on the Data Bus
Write: A Negative pulse will indicate when data is available on the Data Bus
This signal goes low by powering the PTC or by pressing the reset button. This line can be pulled
low by application. Check firmware documentation for resetting by software.
I²C Bus
CS lines when the address areas are accessed
Note: These pins are limited to 5 Volt input/output!!! The full Port E of the Atmega core is mounted to
these pins. This allows us to use advanced features like PWM, UARTS, Time Measurements, etc….
By using firmware that supports these, functions, application specific requirements can be fulfilled.
Digital Ground
5 Volt Digital Supply. Maximum current to get out of this supply : 250mA
Note: All the pins are limited to 5 Volt input/output!!! However, there are Protections, please take
precautions in order to avoid damage of the main board.
PTC04-DB-922xx
Rev. 1.0
Page 5 of 8
Datasheet
Jan 2014