Data Sheet

ISM4343 Specification
DOC-DS-20074-5.3
Inventek Systems
Page 25
57
BT_HOST_WAKE
O
BT_HOST_WAKE
58
GND
-
Ground
59
VBAT
PI
Power supply for backup
circuitry when VDD is not
present
60
GND
-
Ground
61
GND
-
Ground
62
NC
-
Floating
63
NC
-
Floating
64
GND
-
Ground
65
VDD_3V3
PI
DC supply for MCU and I/O
66
GND
-
Ground
67
QUADSPI_BK1_IO1
I/O
QUADSPI_BK1_IO1
PF9
68
QUADSPI_BK1_IO2
I/O
QUADSPI_BK1_IO2
PF7
69
MICRO_I2S2_SD
I/O
MICRO_I2S2_SD
PC3
70
GND
-
Ground
71
GND
-
Ground
72
GND
-
Ground
73
GND
-
Ground
74
MICRO_SPI1_NSS
I/O
MCU_SPI_NSS
PA4
75
MICRO_SPI1_SCK
I/O
MCU_SPI_SCK form MCU
PA5
76
MICRO_SPI1_MISO
I/O
MCU_SPI_MISO
PA6
77
GND
-
Ground
78
QUADSPI_BK2_IO3
I/O
QUADSPI_BK2_IO3
PC5
79
BOOT1/ QUADSPI_CLK
I/O
BOOT1/ QUADSPI_CLK
PB2
80
QUADSPI_BK2_IO0
I/O
QUADSPI_BK2_IO0
PE7
81
QUADSPI_BK2_IO1
I/O
QUADSPI_BK2_IO1
PE8
82
MICRO_I2C2_SCL
I/O
MICRO_I2C2_SCL
PB10
83
MICRO_I2C2_SDA
I/O
MICRO_I2C2_SDA
PB11
84
MCIRO_SPI2_NSS
I/O
MCIRO_SPI2_NSS
PB12
85
MCIRO_SPI2_SCK
I/O
MCIRO_SPI2_SCK
PB13
86
MICRO_GPIO_27
I/O
MCU_GPIO
PD8
87
MICRO_GPIO_25
I/O
MCU_GPIO
PD10
88
NC
-
Floating
89
NC
-
Floating
90
VDD_USB
PI
VDD for USB
91
GND
-
Ground
92
MICRO_I2S2_MCK/
MICRO_USART6_TX
I/O
MICRO_I2S2_MCK/
MICRO_USART6_TX
PC6
93
MICRO_I2S2_CK/
MICRO_USART6_RX
I/O
MICRO_I2S2_CK/
MICRO_USART6_RX
PC7
94
GND
-
Ground
95
NC
-
Floating