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AN3985 Datasheet(PDF) 101 Page - STMicroelectronics

Part # AN3985
Description  Using the CR95HF library with STM8L microcontrollers
PDF  105 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

AN3985 Datasheet(HTML) 101 Page - STMicroelectronics

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AN3985
Application example
Doc ID 022255 Rev 2
101/105
Figure 16.
STM8L1528-EVAL hardware block diagram
For more details about the STM8L1528-EVAL board, please refer to the UM1037 user
manual.
8.7
Pinout description
The tables below present the I/Os used and their configurations for the two boards.
Note:
In low Power state, PC2 is set with Interrupt. All pins are named from STM8L point of view.
MS19970V1
STM8L152M8T6
Contactless tag
MCU
EEPROM
I2C
Timers
STM8L
Core
LCD
GPIO
SPI or
UART
DMA
EEPROM
External EEPROM
CR95HF board
Joystick
LEDs
LCD display
Table 150.
Communication with CR95HF I/Os
STM8L
board
Pin (1)
1.
For both STM8L discovery and evaluation board.
SPI
UART
Name
Direction
Configuration
Name
Direction
Configuration
DDR (2)
2.
Direction data register
CR1 (3)
3.
Control register 1
CR2 (4)
4.
Control register 2
DDR
CR1
CR2
PB7
MISO
Input
Floating
No
interrupt
PB6
MOSI
Output
Push-Pull 10 MHz
PB5
SCK
Output
Push-Pull 10 MHz
PB4
NSS
Output
Open
Drain
2 MHz
NSS
Output
Open
Drain
2 MHz
PB3
SSIO
Input
Floating
No
interrupt
SSIO
Input
Floating
No
interrupt
PC2
IRQ_IN
Input
Pull-up
No
interrupt
UART_R
X
Input
Pull-up
No
interrupt
PC3
IRQ_OUT Output
Open
Drain
2 MHz
UART_R
X
Output
Push-Pull 10 MHz



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