EFM32ZG222 Datasheet, PDF (51/66 Pages) Silicon image – Energy, gas, water and smart metering

Preliminary
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Alternate
LOCATION
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Description
CMU_CLK1
PA1
PE12
Clock Management Unit, clock output number 1.
DBG_SWCLK
PF0
Debug-interface Serial Wire clock input.
Note that this function is enabled to pin out of reset, and has
a built-in pull down.
DBG_SWDIO
PF1
Debug-interface Serial Wire data input / output.
Note that this function is enabled to pin out of reset, and has
a built-in pull up.
GPIO_EM4WU0 PA0
Pin can be used to wake the system up from EM4
GPIO_EM4WU2 PC9
Pin can be used to wake the system up from EM4
GPIO_EM4WU3 PF1
Pin can be used to wake the system up from EM4
GPIO_EM4WU4 PF2
Pin can be used to wake the system up from EM4
GPIO_EM4WU5 PE13
Pin can be used to wake the system up from EM4
HFXTAL_N
PB14
High Frequency Crystal negative pin. Also used as external
optional clock input pin.
HFXTAL_P
PB13
High Frequency Crystal positive pin.
I2C0_SCL
PA1
PD7
PC1
PF1 PE13 I2C0 Serial Clock Line input / output.
I2C0_SDA
PA0
PD6
PC0
PF0 PE12 I2C0 Serial Data input / output.
IDAC0_OUT
PB11
IDAC0 output
LEU0_RX
PD5
PB14
PF1
PA0
LEUART0 Receive input.
LEU0_TX
PD4
PB13
PF0
PF2
LEUART0 Transmit output. Also used as receive input in half
duplex communication.
LFXTAL_N
PB8
Low Frequency Crystal (typically 32.768 kHz) negative pin.
Also used as an optional external clock input pin.
LFXTAL_P
PB7
Low Frequency Crystal (typically 32.768 kHz) positive pin.
PCNT0_S0IN
PC13
PC0 PD6
Pulse Counter PCNT0 input number 0.
PCNT0_S1IN
PC14
PC1 PD7
Pulse Counter PCNT0 input number 1.
PRS_CH0
PA0
PF3
PC14
Peripheral Reflex System PRS, channel 0.
PRS_CH1
PA1
PF4
PC15
Peripheral Reflex System PRS, channel 1.
PRS_CH2
PC0
PF5
PE10
Peripheral Reflex System PRS, channel 2.
PRS_CH3
PC1
PE11
Peripheral Reflex System PRS, channel 3.
TIM0_CC0
PA0
PA0
PA0
PF0
Timer 0 Capture Compare input / output channel 0.
TIM0_CC1
PA1
PA1
PC0
PF1
Timer 0 Capture Compare input / output channel 1.
TIM0_CC2
PA2
PA2
PC1
PF2
Timer 0 Capture Compare input / output channel 2.
TIM1_CC0
PC13 PE10
PB7
PD6
Timer 1 Capture Compare input / output channel 0.
TIM1_CC1
PC14 PE11
PB8
PD7
Timer 1 Capture Compare input / output channel 1.
TIM1_CC2
PC15 PE12
PB11 PC13
Timer 1 Capture Compare input / output channel 2.
US1_CLK
PB7
PF0 PC15
USART1 clock input / output.
US1_CS
PB8
PF1 PC14
USART1 chip select input / output.
US1_RX
PC1
PD6 PD6
USART1 Asynchronous Receive.
USART1 Synchronous mode Master Input / Slave Output
(MISO).
US1_TX
PC0
PD7 PD7
USART1 Asynchronous Transmit.Also used as receive input
in half duplex communication.
USART1 Synchronous mode Master Output / Slave Input
(MOSI).
2013-10-09 - EFM32ZG222FXX - d0066_Rev0.60
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