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STM32W108CB Scheda tecnica(PDF) 94 Page - STMicroelectronics

Il numero della parte STM32W108CB
Spiegazioni elettronici  High-performance, IEEE 802.15.4 wireless system-on-chip with up to 256 Kbytes of embedded Flash memory
PDF  278 Pages
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Produttore elettronici  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STM32W108CB Scheda tecnica(HTML) 94 Page - STMicroelectronics

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General-purpose input/output
STM32W108HB STM32W108CC STM32W108CB STM32W108CZ
94/278
Doc ID 16252 Rev 14
In some cases, it may be useful to assign IRQC or IRQD to an input also in use by a
peripheral, for example to generate an interrupt from the slave select signal (nSSEL) in an
SPI slave mode interface.
Refer to Section 12: Interrupts on page 234 for further information regarding the
STM32W108 interrupt system.
8.3
Debug control and status
Two GPIO registers are largely concerned with debugger functions. GPIO_DBGCR can
disable debugger operation, but has other miscellaneous control bits as well.
GPIO_DBGSR, a read-only register, returns status related to debugger activity
(FORCEDBG and SWEN), as well a flag (BOOTMODE) indicating whether nBOOTMODE
was asserted at the last power-on or NRST-based reset.
8.4
GPIO alternate functions
Table 17 lists the GPIO alternate functions.
Table 16.
IRQC/D GPIO selection
EXTIx_CR
GPIO
EXTIx_CR
GPIO
EXTIx_CR
GPIO
0
PA0
8
PB0
16
PC0
1
PA1
9
PB1
17
PC1
2
PA2
10
PB2
18
PC2
3
PA3
11
PB3
19
PC3
4
PA4
12
PB4
20
PC4
5
PA5
13
PB5
21
PC5
6
PA6
14
PB6
22
PC6
7
PA7
15
PB7
23
PC7
Table 17.
GPIO signal assignments
GPIO
Analog
Alternate function
Input
Output current
drive
PA0
TIM2_CH1(1),
SC2MOSI
TIM2_CH1(1),
SC2MOSI
Standard
PA1
TIM2_CH3(1),
SC2MISO, SC2SDA
TIM2_CH3(1),
SC2MISO, SC2SDA
Standard
PA2
TIM2_CH4(1),
SC2SCLK, SC2SCL
TIM2_CH4(1),
SC2SCLK
Standard
PA3
TIM2_CH2(1),
TRACECLK
TIM2_CH2(1),
SC2nSSEL
Standard
PA4
ADC4
PTI_EN, TRACEDATA2
Standard



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