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参数资料
| 型号： | STMPE2401TBR |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 24 I/O, PIA-GENERAL PURPOSE, PBGA36 |
| 封装： | LEAD FREE, TFBGA-36 |
| 文件页数： | 14/55页 |
| 文件大小： | 959K |
| 代理商： | STMPE2401TBR |
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STMPE2401
Clocking system
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8
Clocking system
Figure 6.
Clocking system
The decision on clocks is based on the bits written into SYSCON registers. Bits 0 to 4 of the
SYSCON register control the gating of clocks to the Rotator, Keypad Controller, PWM and
GPIO respectively in the operational mode. When in sleep mode, the operating clock is cut
off from every functional blocks (including the I2C) except Keypad Controller and GPIO.
8.1
Programming sequence
To put the device in sleep mode, the following needs to be done by the host:
1.
Write a ‘1’ to bit 4 of the SYSCON register.
2.
To wakeup the device, the following needs to be done by the host:
3.
Assert a wakeup routine on the I2C bus by sending the Start Bit, followed by the device
address and the R/W bit.
4.
If there’s a NOACK, keep sending the wakeup routine till there is an ACK from the
slave.
5.
To do a soft reset to the device, the host needs to do the following:
6.
Write a ‘1’ to bit 7 of the SYSCON register.
7.
This bit is automatically cleared upon reset.
8.
To go into Hibernate mode, the following needs to be done by the host:
9.
Set the Disable_32K bit to ‘1’
10. To come out of the Hibernate mode, the following needs to be done by the host:
11. Assert a system reset or
12. Put a wakeup on the I2C
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相关代理商/技术参数 |
参数描述 |
|---|---|
| STMPE2403 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:24-bit Enhanced port expander with Keypad and PWM controller Xpander logic |
| STMPE2403TBR | 功能描述:接口 - 专用 24-bit Enhanced RoHS:否 制造商:Texas Instruments 产品类型:1080p60 Image Sensor Receiver 工作电源电压:1.8 V 电源电流:89 mA 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:BGA-59 |
| STMPE24M31QTR | 功能描述:电容触摸传感器 S-Touch 24 Cap Sens 15fF 512 Steps 30pF RoHS:否 制造商:Microchip Technology 电源电压: 通道数量: 封装 / 箱体: 尺寸: 温度范围: |
| STMPE321 | 制造商:STMicroelectronics 功能描述:3-channel touchkey controller |
| STMPE321QTR | 功能描述:触摸屏转换器和控制器 3-channel CAP Touch Key Controller RoHS:否 制造商:Microchip Technology 类型:Resistive Touch Controllers 输入类型:3 Key 数据速率:140 SPS 分辨率:10 bit 接口类型:4-Wire, 5-Wire, 8-Wire, I2C, SPI 电源电压:2.5 V to 5.25 V 电源电流:17 mA 工作温度:- 40 C to + 85 C 封装 / 箱体:SSOP-20 |
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