User's Manual

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peiker acustic GmbH & Co. KG, Max-Planck-Straße 28-32, D-61381 Friedrichsdorf, Amtsgericht Bad Homburg HRA 1897
phG: peiker Verwaltungs GmbH, Vorsitzender der Geschäftsführung: Andreas Peiker, Geschäftsführer: Reinhard Kromer-von Baerle, Amtsgericht Bad Homburg HRB 1369
Vorsitzender des Aufsichtsrates: Dr. Helmut Rothenberger Ein Unternehmen der peiker Firmengruppe
38
GPIO_9 –
NAD-UPDATE
1.8
V
Pull up 10 kΩ against
1.8 V
The following table is valid for all GPIOs and digital inputs and outputs.
Table 14: Definition of High - and Low - Level for digital inputs and outputs
Parameter
Min
Typ
Max
Unit
V
IH
High-level input
voltage
0.65*1.8
1.8+0.3
V
V
IL
Low-level input
voltage
-0.3
0.35*1.8
V
V
SHYS
Hysteresis voltage
100
mV
V
OH
High-level output
voltage
1.8-0.45
1.8
V
V
OL
Low-level output
voltage
0
0.45
V
3.3.2.8. UART
3.3.2.8.1. Description
The GPIOs 30, 31 and 42, 43 are configured as a 2 – Pin - UART and the GSBI1 are configured as a 4 –
Pin - UART. It is used for the following applications:
- The UART 1 is used for the communication between the NAD6200 module and a CAN Controller
- The UART 2 is used for log and trace
- The UART 3 is used for test and debug of the NAD6200 module
3.3.2.8.2. Electrical characteristics
Table 15: Electrical characteristics of UART Interfaces
PIN
Parameter
Min
Max
Unit
19
UART – RX2
1.8
V
22
UART – TX2
1.8
V
31
UART – RX3
1.8
V
32
UART – TX3
1.8
V
15
UART – RFR1
1.8
V
17
UART – TX1
1.8
V
18
UART – CTS1
1.8
V
20
UART – RX1
1.8
V
3.3.2.9. I²C
3.3.2.9.1. Description
The I²C – Interface is used for the communication between the CODEC and NAD6200 Module.