EM341 Datasheet, PDF (54/237 Pages) Silicon Laboratories – High-Performance, Integrated RF4CE System-on-Chip

EM341
7.10. GPIO Signal Assignment Summary
The GPIO signal assignments are shown in Table 7.5.
Table 7.5. GPIO Signal Assignments
GPIO
PA0
PA1
PA2
PA3
PA4
PA5
PA6
PA7
PB0
PB1
PB2
PB3
PB4
PB5
PB6
PB7
PC0
PC1
PC2
PC3
PC4
PC5
PC6
PC7
Analog
ADC4
ADC5
VREF
ADC0
ADC1
ADC2
ADC3
OSC32B
OSC32A
Alternate Output
TIM2C1¹, SC2MOSI
TIM2C3¹, SC2MISO, SC2SDA
TIM2C4¹, SC2SCLK, SC2SCL
TIM2C2¹, TRACECLK
PTI_EN, TRACEDATA2
PTI_DATA, TRACEDATA3
TIM1C3
TIM1C4, REG_EN³
TRACECLK
TIM2C1⁴, SC1TXD, SC1MOSI,
SC1MISO, SC1SDA
TIM2C2⁴, SC1SCLK
TIM2C3⁴, SC1SCLK
TIM2C4⁴, SC1nRTS
TIM1C1
TIM1C2
TRACEDATA1
TRACEDATA0, SWO
JTDO⁶, SWO
SWDIO⁷
TX_ACTIVE
nTX_ACTIVE
Input
TIM2C1¹, SC2MOSI
TIM2C3¹, SC2MISO, SC2SDA
TIM2C4¹, SC2SCLK
TIM2C2¹, SC2nSSEL
nBOOTMODE²
TIM1C3
TIM1C4
TIM1CLK, TIM2MSK, IRQA
TIM2C1⁴, SC1SDA
Output Current
Drive
Standard
Standard
Standard
Standard
Standard
Standard
High
High
Standard
Standard
TIM2C2⁴, SC1MISO, SC1MOSI,
SC1SCL, SC1RXD
TIM2C3⁴, SC1SCLK, SC1nCTS
TIM2C4⁴, SC1nSSEL
TIM2CLK, TIM1MSK
TIM1C1, IRQB
TIM1C2
JRST⁵
JTDI⁵
SWDIO⁷, JTMS⁷
OSC32_EXT
Standard
Standard
Standard
Standard
High
High
High
Standard
Standard
Standard
Standard
Standard
Standard
Standard
Notes:
1. Default signal assignment (not remapped).
2. Overrides during reset as an input with pull up.
3. Overrides after reset as an open-drain output.
4. Alternate signal assignment (remapped).
5. Overrides in JTAG mode as a input with pull up.
6. Overrides in JTAG mode as a push-pull output.
7. Overrides in Serial Wire mode as either a push-pull output, or a floating input, controlled by the debugger.
Rev 1.0
55