Data Sheet

12 / 21 SKB378-DA-001,A/1
深圳市天工测控技术有限公司
Skylab M&C Technology Co., Ltd
SKB378 规格书 datasheet
plus speeds are supported, allowing transmission rates from 10kbit/s up to 1Mbit/s. Slave arbitration and
timeouts are also available, allowing implementation of an SMBus-compliant system. The interface
provided to software by the I2C module allows precise timing control of the transmission process and
highly automated transfers. Automatic recognition of slave addresses is provided in active and low
energy modes. Note that not all instances of I2C are avaliable in all energy modes.
6.4 程序烧录口 Flash Program I/Os
SKB378 有两个烧录管脚，分别是 SWDCLK 和 SWDIO。这个双线串行调试接口提供了一个调试访问
接口（DAP），为程序代码的非侵入性调试提供了一个灵活而强大的机制，可以支持断点调试和步进调试。
建议设计时留出 4pin 接口（VCC，GND，SWCLK，SWDIO）。
SKB378 has two programmer pins, respectively SWDCLK pin and SWDIO pin. The two pin Serial Wire
Debug (SWD) interface provided as a part of the Debug Access Port (DAP) offers a flexible and powerful
mechanism for non-intrusive debugging of program code. Breakpoints and single stepping are part of
this support. It is suggested that a 4-pin interface (VCC,GND,SWCLK,SWDIO) should be reserved on
your design.
6.5 脉冲密度调制接口 Pulse Density Modulation(PDM) Interface
PDM 模块为脉冲密度调制（PDM）话筒、隔离的 Sigma-delta ADC、数字传感器和其他 PDM 或
Sigma-delta 位流外围设备提供串行接口和抽取滤波器。可编程级联积分器梳状（CIC）滤波器用于抽取输
入比特流。PDM 支持立体声或单声道输入数据和 DMA 传输。
The PDM module provides a serial interface and decimation filter for Pulse Density Modulation (PDM)
microphones, isolated Sigma󶂢delta ADCs, digital sensors and other PDM or sigma delta bit stream
peripherals. A programmable Cascaded Integrator Comb (CIC) filter is used to decimate the incoming bit
streams. PDM supports stereo or mono input data and DMA transfer.
6.6 模数转换 Analog to Digital Converter
IADC 是一种混合架构，结合了 SAR 和 Delta-Sigma 转换器的技术。它的分辨率高达 12 位，最高可
达 1Msps。硬件过采样减少了多个前端采样的系统级噪声。空间碎片协委会包括综合电压基准。输入可从
多种来源选择，包括可配置为单端或差分的引脚。
The IADC is a hybrid architecture combining techniques from both SAR and Delta-Sigma style
converters. It has a resolution of up to 12bits at up to 1Msps. Hardware oversampling reduces
system-level noise over multiple front-end samples. The IADC includes integrated voltage references.