Maxim Integrated MAX32660 - Table 6-2: GPIO Port, Pin Name and Alternate Function Matrix, 20-TQFN; Table 6-1: GPIO Port, Pin Name and Alternate Function Matrix, 16-WLP

MAX32660 User Guide
Maxim Integrated Page 59 of 195
Table 6-1: GPIO Port, Pin Name and Alternate Function Matrix, 16-WLP
16-WLP
GPIO Port[bit]
GPIO
Alternate Function 1
Alternate Function 2
Alternate Function 3
GPIO0[0]
P0.0
SWDIO
1
SPI1_MISO (I2S_SDI)
2
UART1_TX
1
GPIO0[1]
P0.1
SWDCLK
1
SPI1_MOSI (I2S_SDO)
2
UART1_RX
1
GPIO0[2]
3
P0.2
I2C1_SCL
SPI1_SCK (I2S_BCLK)
2
32KCAL
GPIO0[3]
3
P0.3
I2C1_SDA
SPI1_SS0 (I2S_LRCLK)
2
TMR0
GPIO0[4]
P0.4
SPI0_MISO
UART0_TX
-
GPIO0[5]
P0.5
SPI0_MOSI
UART0_RX
-
GPIO0[6]
P0.6
SPI0_SCK
UART0_CTS
UART1_TX
1
GPIO0[7]
P0.7
SPI0_SS0
UART0_RTS
UART1_RX
1
GPIO0[8]
3
P0.8
I2C0_SCL
SWDIO
1
-
GPIO0[9]
3
P0.9
I2C0_SDA
SWDCLK
1
-
Table 6-2: GPIO Port, Pin Name and Alternate Function Matrix, 20-TQFN
20-TQFN
GPIO Port[bit]
GPIO
Alternate Function 1
Alternate Function 2
Alternate Function 3
GPIO0[0]
P0.0
SWDIO
1,
SPI1_MISO (I2S_SDI)
1,2
UART1_TX
1
GPIO0[1]
P0.1
SWDCLK
1
SPI1_MOSI (I2S_SDO)
1,2
UART1_RX
1
GPIO0[2]
3
P0.2
I2C1_SCL
SPI1_SCK (I2S_BCLK)
1,2
32KCAL
GPIO0[3]
3
P0.3
I2C1_SDA
SPI1_SS0 (I2S_LRCLK)
1,2
TMR0
GPIO0[4]
P0.4
SPI0_MISO
UART0_TX
-
GPIO0[5]
P0.5
SPI0_MOSI
UART0_RX
-
GPIO0[6]
P0.6
SPI0_SCK
UART0_CTS
UART1_TX
1
GPIO0[7]
P0.7
SPI0_SS0
UART0_RTS
UART1_RX
1
GPIO0[8]
3
P0.8
I2C0_SCL
SWDIO
1
-
GPIO0[9]
3
P0.9
I2C0_SDA
SWDCLK
1
-
GPIO0[10]
P0.10
SPI1_MISO (I2S_SDI)
1,2
UART1_TX
1
GPIO0[11]
P0.11
SPI1_MOSI_ (I2S_SDO)
1,2
UART1_RX
1
GPIO0[12]
P0.12
SPI1_SCK (I2S_BCLK)
1,2
UART1_CTS
GPIO0[13]
P0.13
SPI1_SS0 (I2S_LRCLK)
1,2
UART1_RTS
6.2 Power-On-Reset Configuration
During a power-on-reset event all I/O default to GPIO mode as inputs floating except the SWD JTAG pins P0.0 and P0.1. The
SWD JTAG pins always default to Alternate Function 1 enabled and the SWD JTAG is enabled.
1
This alternate function signal is mappable to more than one GPIO pin but there is only one instance of this peripheral in the MAX32660.
2
I2S_BCLK, I2S_LRCLK, I2S_SDK, I2S_SDO when the I2S function is enabled.
3
GPIO with I2C as an Alternate Function do not support slew rate control and only support two output drive strength modes.