MT7697DIN datasheet(27/84 Pages) ETC2

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MT7697D

Internet-of-Things Wireless Connectivity

Page 27 of 84

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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.

2.4.8

Efuse

MT7697D uses embedded Efuse to store device specific configuration information such as MAC

addresses, and power control settings.

The major fields defined in the Efuse:



Wi-Fi MAC addresses



Wi-Fi country code



Wi-Fi TSSI parameters, TX power level



Wi-Fi NIC configuration: RF front-end configuration, LED mode, baseband configuration



Bluetooth MAC address



Bluetooth TX power level.

2.4.9

Interrupt Controller

MT7697D integrates the Nested Vectored Interrupt Controller (NVIC) for Cortex-M4. The NVIC

supports



Level and pulse detection of interrupt signals



Configurable priority



Wake-up interrupt controller (WIC) providing ultra-low power sleep mode support

2.4.9.1

Interrupt Sources

The table below listed the NVIC and WIC interrupt sources. In total, there are 49 NVICs, while 23 of

them are external interrupts multiplexed with GPIO functions.

The power domain/subsystem lists the power domain and the subsystem from which the interrupt is

generated.

Table 2-13. CM4 NVIC Interrupt Source

NVIC

No.

Interrupt

source

Power domain

/subsystem

External

interrupt

Wake-up

capability

(1)

De-bounce

Description

INT0

UART1

CM4_OFF/MCUSYS_CM4

UART 1

INT1

DMA_CM4

CM4_OFF/MCUSYS_CM4

Generic DMA in CM4 subsystem

INT2

HIF_CM4

TOP_AON/HIFSYS

Wi-Fi host interface for CM4

INT3

I2C1

CM4_OFF/MCUSYS_CM4

I2C 1

INT4

I2C2

CM4_OFF/MCUSYS_CM4

I2C 2

INT5

UART2

CM4_OFF/MCUSYS_CM4

UART 2

INT6

CRYPTO

CM4_OFF/MCUSYS_CM4

Crypto engine

INT7

CM4_OFF/MCUSYS_CM4

Serial flash controller, for debug

INT8

BTIF_N9_WA

TOP_OFF(N9)/MCUSYS_N

Bluetooth interface in N9

subsystem to

wake up CM4

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