REL 1.0
Page 79 of 89
RZ/G1M/G1N Qseven Development Platform Hardware User Guide
iWave Systems Technologies Pvt. Ltd.
The below table provides the Power Input Requirement of RZ/G1M/G1N Qseven Carrier Board.
Table 29: Power Input Requirement
Sl. No.
Power Rail
Min (V)
Typical (V)
Max(V)
Max Input Ripple
1
VCC_12V
¹
11.75V
12V
12.25V
±50mV
2
VRTC_3V0
²
2.8V
3V
3.3V
±20mV
¹ RZ/G1M/G1N Qseven Carrier Board is designed to work with 12V, 2A input power from external Power adapter.
² This voltage is from Coin cell holder and used as backup power source to RTC circuit of RZ/G1M/G1N Qseven SOM
when SOM VCC is off. This is an optional power and required only if RTC functionality is used.
Important Note: All carrier board power supplies should be powered ON only after the RZ/G1M/G1N CPU is powered
ON completely in the RZ/G1M/G1N Qseven SOM. This is to ensure that there is no back voltage (leakage) from any
supply on the board towards the RZ/G1M/G1N CPU IO pins.
4.1.2
Power Output Specification
The RZ/G1M/G1N Qseven carrier board has dedicated power regulator to provide +5V power to Qseven SOM for
VCC power supply. Also +3V RTC power from coin cell holder is provided to Qseven SOM for Real time clock support.
The RZ/G1M/G1N Qseven carrier board also shares on board +5V, +3.3V and +1.5V power to Expansion connector3
for Add-On Module power.
Table 30: Power Output Specification
Sl. No.
Power Rail
Min (V)
Typical (V)
Max(V)
Max Output Current (mA)
Power to Qseven SOM (through Qseven MXM connector)
1
VCC_5V_SOM
4.85V
5V
5.15V
4000mA
2
VRTC_3V0
2.8V
3V
3.3V
-
Power to Add-On Module (through Expansion connector3)
2
VCC_5V
4.85V
5V
5.15V
1500mA
3
VCC_3V3
3.15
3.3
3.45
1000mA
3
VCC_1V5
1.35
1.5
1.65
500mA