S i 1 0 6 x - D K
10
Rev. 0.2
Table 4 lists the functions and connections of the WMCU GPIOs. Primary functions are factory-connected on the
WMB. Secondary functions can be connected by desoldering a 0
resistor that connects the primary function and
soldering in to the proper position to connect the secondary function. Because of the limited number of MCU
GPIOs of the WMCU, LEDs and pushbutton switches are connected to the EBID MCU of the WMB912 and can be
accessed via the SMBUS on P1.4 and P1.5 of the WMCU.
Table 4. WMCU GPIO Functions/Connections
WMCU Pin
WMB Board Test
Pin Marking
MSC-WMB912
Primary Function
0
Resistor
MSC-WMB912
Sec. Function
0
Resistor
P0.0
P0.0
EBID_MCU_NIRQ
R78
LED1/SW1
R90
P0.1
P0.1
EZR_NIRQ
P0.2
P0.2
SPI0_NSSA (GLCD*)
R29
GPIO_0
R79
P0.3
P0.3
SPI0_MOSI
R57
GPIO_1
R63
P0.4
P0.4
TS_RX
R31
BUZZER
R23
P0.5
P0.5
TS_TX
R96
GPIO_2
R61
P0.6
P0.6
SPI0_SCK
R72
LED2/SW2
R71
(P0.7)
EZR_SDN*
(P1.0)
EZR_SPI_SCK*
(P1.1)
EZR_SPI_MISO*
(P1.2)
EZR_SPI_MOSI*
(P1.3)
EZR_SPI_NSS3*
P1.4
P2.1
I2C_SDA
R26
POT_EN
R64
P1.5
P2.2
I2C_SCL
R97
POT
R51
P1.6
P0.7
LCD_A0
R98
IREF
R35
*Note:
This is an interface pin between the radio and the MCU and is connected internally in the WMCU package.
It is neither accessible on the pins of the WMCU IC nor, therefore, on the test pins (J10) of the WMB.
Summary of Contents for Si106 Series
Page 12: ...Si106x DK 12 Rev 0 2 Figure 6 MSC WMB912 Wireless Motherboard Schematic 2 4 ...
Page 13: ...Si106x DK Rev 0 2 13 Figure 7 MSC WMB912 Wireless Motherboard Schematic 3 4 ...
Page 14: ...Si106x DK 14 Rev 0 2 Figure 8 MSC WMB912 Wireless Motherboard Schematic 4 4 ...
Page 15: ...Si106x DK Rev 0 2 15 Figure 9 1060 PCE20C490 WMCU Pico Board Schematic ...
