Buzzer; Expansion Connector - mangOH Yellow Hardware Architecture Manual

mangOH Yellow Hardware Architecture Guide
The RTC provides basic functionality (provides clock (year, month, day, weekday, hours, minutes, seconds) and
calendar), and includes a clock output signal (CLKOUT) that connects to a buzzer
purposes.

2.4.15 Buzzer

The mangOH Yellow includes an integrated buzzer (U406) for user-defined use. The buzzer is activated by the
RTC clock output signal (CLKOUT).

2.4.16 Expansion Connector

The mangOH Yellow provides a 15-pin expansion connector (CN805) that can be used to connect an external
device to the mangOH Yellow. The expansion connector includes several pins that connect to the CF3 module's
signals as detailed in Table
Note: All signals (pins 2–14) are 3.3 V.
For additional information, including default configuration and how to temporarily change it, see
Connector Interfaces on page
Important:
Do not use the UART connections on both the IoT card
expansion connector to the mangOH Yellow at the same time.
Table 2-6: Expansion Connector Signal Connections to CF3 Module
Expansion
Pins
Output Power
(Expansion to
mangOH Yellow)
(Pin 1)
SYSTEM_RESET via:
Reset LOWPOWER_RESET
•
(Pin 2) (CF3 GPIO6)
Reset button (SW401)
•
SPI
(Pins 3–6)
UART
(Pins 7–8)
ADC
(Pin 9)
I2C
(Pins 10–11)
Rev 2 Oct.19
2-6.
35.
CF3/Other Signal(s)
Signal Mux
VIN_CONN n/a
n/a
HSIC
No
(Pins 14–15)
UART1
(Pins 5–6)
ADC2
No
(Pin 107)
I2C1
Hub
(Pins 1, 66)
(IoT Expansion Card on page
Purpose: Connected device provides power to the mangOH Yellow
when Power Supply Selector (CN801) jumper is on pins 2–3.
For details, see Power Management on page
Purpose: Input from mangOH Yellow to reset the connected device.
Purpose: Data transfer; application control
For details, see HSIC (USB/Ethernet) on page
Purpose: Data transfer via 2-pin UART interface (Tx/Rx).
For details, see UART1 on page
Purpose: General purpose ADC output to host application (e.g.
indicate when a sensor has triggered)
For details, see ADC on page
Purpose: Data transfer (standard mode). Higher speeds possible if
supported by host application.
For details, see I2C1 on page
28
(2.4.15 Buzzer) for user-defined
Expansion
16) and a device via the
Notes
37.
23.
30.
19.
23.
41113116