AcSIP S76S

Overview

The AcSIP S76S is an SiP from AcSIP containing an STMicro STM32L073RZ MCU, a Semtech SX1276 LoRaWAN transceiver, and a +20 dBm power amplifier. Refer to the AcSIP S76S Product Information Brief for details. Further information is available from the AcSIP Product Data Download site (may need login). The parts are available through TechShip.

Zephyr applications may use the acsip_s76s configuration to use this SiP.

AcSIP S76S system on a chip, containing STMicro STM32L073RZ and Semtech SX1276

AcSIP S76S

Device Resources

The embedded STMicro STM32L073RZ has some GPIOs and SPI2 internally committed to the LoRaWAN transceiver operation. See internally committed table for a list of resources committed to this function.

As a result, some functions, ports and features of the STMicro STM32L073RZ are not available. See unavailable table for a list of resources not available due to a lack of pin-out.

Available pinned-out resources are listed in this table. The actual S76S pinout table is below.

These tables are STM32L07x generic - some pinned-out resources may be unavailable due to limitations on the STMicro STM32L073RZ processor itself. Consult with the STMicro STM32L073RZ documentation.

Development

The Ronoth LoDev board is an open source development board, see its board description files.

Debugging

Programming and debugging uses the SWD port, as on any STM32 processor. An ST-LINK/V2 adapter may be used with the appropriate software (st-utils package on Linux).

Pin Assignments and Available Pins

S76S Pin Assignment

Pin

Function

Pin

Function

1

NC

32

GND

2

GND

33

RF_ANT

3

GND

34

GND

4

PC1

35

GND

5

PC2

36

PA1_RF_FEM_CPS

6

PC3

37

GND

7

NC

38

NC

8

NC

39

GND

9

NC

40

NC

10

NC

41

GND

11

NC

42

NC

12

nReset

43

VDD

13

PA0

44

VDD

14

GND

45

PA8_USART1_CK

15

GND

46

PA10_USART1_RX

16

PA2_TxD_A

47

PA9_USART1_TX

17

PA3_RxD_A

48

PA11_USART1_CTS

18

PA4_SPI1_NSS

49

PA12_USART1_RTS

19

PA5_SPI1_SCK

50

PA13_SWDIO

20

PA6_SPI1_MISO

51

PA14_SWCLK

21

PA7_SPI1_MOSI

52

PC10

22

PC4

53

PC11

23

PC5

54

PC12

24

PB0_IO_INT1

55

PD2

25

PB1_IO_INT2

56

PB5

26

PC6

57

PB6_SCL

27

PC7

58

PB7_SDA

28

PC8

59

BOOT0

29

PC9

60

PB8_IO_LED_FCT

30

RXTX/RFMOD

61

GND

31

GND

62

GND

Ports Connected to External Pins

Pin name

Pin Type

I/O Structure

Note

Alternate functions

Additional functions

BOOT0

I

NRST

I/O

PA0

I/O

TC

TIM2_CH1, TSC_G1_IO1, USART2_CTS, TIM2_ETR, USART4_TX, COMP1_OUT

COMP1_INM, ADC_IN0, RTC_TAMP2/WKUP1

PA1

I/O

FT

EVENTOUT, LCD_SEG0, TIM2_CH2, TSC_G1_IO2, USART2_RTS/USART2_DE, TIM21_ETR, USART4_RX

COMP1_INP, ADC_IN1

PA2

I/O

FT

TIM21_CH1, LCD_SEG1, TIM2_CH3, TSC_G1_IO3, USART2_TX, LPUART1_TX, COMP2_OUT

COMP2_INM, ADC_IN2

PA3

I/O

FT

TIM21_CH2, LCD_SEG2, TIM2_CH4, TSC_G1_IO4, USART2_RX, LPUART1_RX

COMP2_INP, ADC_IN3

PA4

I/O

TC

SPI1_NSS, TSC_G2_IO1, USART2_CK, TIM22_ETR

COMP1_INM, COMP2_INM, ADC_IN4, DAC_OUT1

PA5

I/O

TC

SPI1_SCK, TIM2_ETR, TSC_G2_IO2, TIM2_CH1

COMP1_INM, COMP2_INM, ADC_IN5, DAC_OUT2

PA6

I/O

FT

SPI1_MISO, LCD_SEG3, TIM3_CH1, TSC_G2_IO3, LPUART1_CTS, TIM22_CH1, EVENTOUT, COMP1_OUT

ADC_IN6

PA7

I/O

FT

SPI1_MOSI, LCD_SEG4, TIM3_CH2, TSC_G2_IO4, TIM22_CH2, EVENTOUT, COMP2_OUT

ADC_IN7

PA8

I/O

FTf

MCO, LCD_COM0, USB_CRS_SYNC, EVENTOUT, USART1_CK, I2C3_SCL

PA9

I/O

FTf

MCO, LCD_COM1, TSC_G4_IO1, USART1_TX, I2C1_SCL, I2C3_SMBA

PA10

I/O

FTf

LCD_COM2, TSC_G4_IO2, USART1_RX, I2C1_SDA

PA11

I/O

FT

SPI1_MISO, EVENTOUT, TSC_G4_IO3, USART1_CTS, COMP1_OUT

USB_DM

PA12

I/O

FT

SPI1_MOSI, EVENTOUT, TSC_G4_IO4, USART1_RTS/USART1_DE, COMP2_OUT

USB_DP

PA13

I/O

FT

SWDIO, USB_NOE, LPUART1_RX

PA14

I/O

FT

SWCLK, USART2_TX, LPUART1_TX

PB0

I/O

FT

EVENTOUT, LCD_SEG5, TIM3_CH3, TSC_G3_IO2

LCD_VLCD3, ADC_IN8, VREF_OUT

PB1

I/O

FT

LCD_SEG6, TIM3_CH4, TSC_G3_IO3, LPUART1_RTS/LPUART1_DE

ADC_IN9, VREF_OUT

PB5

I/O

FT

SPI1_MOSI, LCD_SEG9, LPTIM1_IN1, I2C1_SMBA, TIM3_CH2/TIM22_CH2, USART1_CK, USART5_CK, USART5_RTS/USART5_DE

COMP2_INP

PB6

I/O

FTf

USART1_TX, I2C1_SCL, LPTIM1_ETR, TSC_G5_IO3

COMP2_INP

PB7

I/O

FTf

USART1_RX, I2C1_SDA, LPTIM1_IN2, TSC_G5_IO4, USART4_CTS

COMP2_INP, PVD_IN

PB8

I/O

FTf

LCD_SEG16, TSC_SYNC, I2C1_SCL

PC1

I/O

FTf

LPTIM1_OUT, LCD_SEG19, EVENTOUT, TSC_G7_IO2, LPUART1_TX, I2C3_SDA

ADC_IN11

PC2

I/O

FTf

LPTIM1_IN2, LCD_SEG20, SPI2_MISO/I2S2_MCK, TSC_G7_IO3

ADC_IN12

PC3

I/O

FT

LPTIM1_ETR, LCD_SEG21, SPI2_MOSI/I2S2_SD, TSC_G7_IO4

ADC_IN13

PC4

I/O

FT

EVENTOUT, LCD_SEG22, LPUART1_TX

ADC_IN14

PC5

I/O

FT

LCD_SEG23, LPUART1_RX, TSC_G3_IO1

ADC_IN15

PC6

I/O

FT

TIM22_CH1, LCD_SEG24, TIM3_CH1, TSC_G8_IO1

PC7

I/O

FT

TIM22_CH2, LCD_SEG25, TIM3_CH2, TSC_G8_IO2

PC8

I/O

FT

TIM22_ETR, LCD_SEG26, TIM3_CH3, TSC_G8_IO3

PC9

I/O

FTf

TIM21_ETR, LCD_SEG27, USB_NOE/TIM3_CH4, TSC_G8_IO4, I2C3_SDA

PC10

I/O

FT

LPUART1_TX, LCD_COM4/LCD_SEG2 8/LCD_SEG48, USART4_TX

PC11

I/O

FT

LPUART1_RX, LCD_COM5/LCD_SEG2 9/LCD_SEG49, USART4_RX

PC12

I/O

FT

LCD_COM6/LCD_SEG3 0/LCD_SEG50, USART5_TX, USART4_CK

PD2

I/O

FT

LPUART1_RTS/LPUART1_DE, LCD_COM7/LCD_SEG3 1/LCD_SEG51, TIM3_ETR, USART5_RX

Notes:

  1. PA4 offers a reduced touch sensing sensitivity. It is thus recommended to use it as sampling capacitor I/O.

  2. These pins are powered by VDD_USB. For all characteristics that refer to VDD, VDD_USB must be used instead.

Internally Dedicated Ports

Pin name

Pin Type

I/O Structure

Note

Function

PA15

I/O

FT

INTERNAL SX1276 D5

PB3

I/O

FTf

INTERNAL SX1276 D4

PB4

I/O

FTf

INTERNAL SX1276 D3

PB9

I/O

FTf

INTERNAL SX1276 D2

PB10

I/O

FT

INTERNAL SX1276 Reset

PB11

I/O

FT

INTERNAL SX1276 D0

PB12

I/O

FT

INTERNAL SX1276 SPI nCS

PB13

I/O

FTf

INTERNAL SX1276 SPI2_SCK

PB14

I/O

FTf

INTERNAL SX1276 SPI2_MISO

PB15

I/O

FT

INTERNAL SX1276 SPI2_MOSI

PC13

I/O

FT

INTERNAL SX1276 D1

Ports Not Available / Not Connected

Pin name

Pin Type

I/O Structure

Note

Alternate functions

Additional functions

PC0

I/O

FTf

LPTIM1_IN1, LCD_SEG18, EVENTOUT, TSC_G7_IO1, LPUART1_RX, I2C3_SCL

ADC_IN10

PC14- OSC32_IN (PC14)

I/O

FT

OSC32_IN

PC15- OSC32_OUT (PC15)

I/O

TC

OSC32_OUT

PD0

I/O

FT

TIM21_CH1, SPI2_NSS/I2S2_WS

PD1

I/O

FT

SPI2_SCK/I2S2_CK

PD3

I/O

FT

USART2_CTS, LCD_SEG44, SPI2_MISO/I2S2_MCK

PD4

I/O

FT

USART2_RTS/USART2_DE, SPI2_MOSI/I2S2_SD

PD5

I/O

FT

USART2_TX

PD6

I/O

FT

USART2_RX

PD7

I/O

FT

USART2_CK, TIM21_CH2

PD8

I/O

FT

LPUART1_TX, LCD_SEG28

PD9

I/O

FT

LPUART1_RX, LCD_SEG29

PD10

I/O

FT

LCD_SEG30

PD11

I/O

FT

LPUART1_CTS, LCD_SEG31

PD12

I/O

FT

LPUART1_RTS/LPUART1_DE, LCD_SEG32

PD13

I/O

FT

LCD_SEG33

PD14

I/O

FT

LCD_SEG34

PD15

I/O

FT

USB_CRS_SYNC, LCD_SEG35

PE0

I/O

FT

LCD_SEG36, EVENTOUT

PE1

I/O

FT

LCD_SEG37, EVENTOUT

PE2

I/O

FT

LCD_SEG38, TIM3_ETR

PE3

I/O

FT

TIM22_CH1, LCD_SEG39, TIM3_CH1

PE4

I/O

FT

TIM22_CH2, TIM3_CH2

PE5

I/O

FT

TIM21_CH1, TIM3_CH3

PE6

I/O

FT

TIM21_CH2, TIM3_CH4

RTC_TAMP3/WKUP3

PE7

I/O

FT

LCD_SEG45, USART5_CK/USART5_RTS/USART5_DE

PE8

I/O

FT

LCD_SEG46, USART4_TX

PE9

I/O

FT

TIM2_CH1, LCD_SEG47, TIM2_ETR, USART4_RX

PE10

I/O

FT

TIM2_CH2, LCD_SEG40, USART5_TX

PE11

I/O

FT

TIM2_CH3, USART5_RX

LCD_VLCD1

PE12

I/O

FT

TIM2_CH4, SPI1_NSS

LCD_VLCD3

PE13

I/O

FT

LCD_SEG41, SPI1_SCK

PE14

I/O

FT

LCD_SEG42, SPI1_MISO

PE15

I/O

FT

LCD_SEG43, SPI1_MOSI

PH0-OSC_IN (PH0)

I/O

TC

USB_CRS_SYNC

OSC_IN

PH1- OSC_OUT (PH1)

I/O

TC

OSC_OUT

PH9

I/O

FT

PH10

I/O

FT

VDD_USB

S

VDDA

S

VLCD

S

VREF-

S

VREF+

S

VSSA

S

References

License

This document Copyright (c) 2021 Dean Weiten <dmw@weiten.com>

SPDX-License-Identifier: Apache-2.0