Maxim Integrated MAX32665 User Manual

MAX32665-MAX32668 User Guide
Maxim Integrated Page 121 of 457
GPIO Port[pin]
GPIO
ALTERNATE
FUNCTION 1
ALTERNATE
FUNCTION 2
ALTERNATE
FUNCTION 3
ALTERNATE
FUNCTION 4
GPIO1[7]
P1.7
SDHC_CDN
UART0_RTS
PT7
GPIO1[8]
P1.8
QSPI0_SS0
PT8
GPIO1[9]
P1.9
QSPI0_MOSI/SDIO0
PT9
GPIO1[10]
P1.10
QSPI0_MISO/SDIO1
PT10
GPIO1[11]
P1.11
QSPI0_SCK
PT11
GPIO1[12]
P1.12
QSPI0_SDIO2
UART1_RX
PT12
GPIO1[13]
P1.13
QSPI0_SDIO3
UART1_TX
PT13
GPIO1[14]
P1.14
I2C2_SCL
UART1_CTS
PT14
GPIO1[15]
P1.15
I2C2_SDA
UART1_RTS
PT15
Each device pin can be individually configured as a GPIO or an alternate function as shown in Table 6-3. The correct
alternate function setting must be selected for each pin of a given multi-pin peripheral for proper operation.
Table 6-3: MAX32665—MAX32668 GPIO Pin Configuration
MODE
GPIOn_EN0
GPIOn_EN1
GPIOn_EN2
AF1
0
0
0
AF2
0
1
0
AF3
0
0
1
AF4
0
1
1
I/O (transition to AF1)
1
0
0
I/O (transition to AF2)
1
1
0
I/O (transition to AF3)
1
0
1
I/O (transition to AF4)
1
1
1
Table 6-4 shows the configuration options for digital I/O in input mode. Refer to the data sheet for details of specific
electrical characteristics.
Table 6-4: MAX32665—MAX32668 Input Mode Configuration
Input Mode
Mode Select
Pullup/Pulldown Strength
Power Supply
GPIOn_PDPU_SEL1[pin]
GPIOn_PDPU_SEL0[pin]
GPIOn_PS[pin]
GPIOn_VSSEL[pin]
High-impedance
0
0
N/A
N/A
Weak Pull-up to VDDIO
(1MΩ)
0
1
0
1
Strong Pull-up to VDDIO
(25KΩ)
0
1
1
1
Weak Pull-down to
VDDIO (1MΩ)
1
0
0
0
Strong Pull-down to
VDDIO (25KΩ)
1
0
1
0
Reserved
1
1
NA
N/A
Table 6-5 shows the configuration options for digital I/O in output mode. Refer to the data sheet for details of specific
electrical characteristics.

Maxim Integrated MAX32665 Specifications

General

Brand	Maxim Integrated
Model	MAX32665
Category	Motherboard
Language	English