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参数资料
| 型号： | 73M1903C-EVM |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 10/23页 |
| 文件大小： | 0K |
| 描述： | BOARD DEMO 73M1903C WORLDWIDE |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 1 |
| 主要目的： | 接口，模拟前端（AFE） |
| 已用 IC / 零件： | * |
| 主要属性： | * |
| 次要属性： | * |
| 已供物品： | * |
73M1903C Evaluation Board User Manual
UM_1903C_030
2. Reset the HC bit (Register 0x01 bit 0) in next frame sequence.
At this point, the 73M1903C is guaranteed to be in the software controlled control frame mode. All the
MAFE serial data will be data only unless the host requests a control frame by setting the LSB of the TX
data to a one by setting bit 0 of data frame. The following frame will then be a control frame.
B. Control Frame Generation
? Software Controlled Control Frame
1. Mask TXD Bit 0 as 1 to request a subsequent control frame.
2. Write or read the 73M1903C register using the MAFE control data format.
3. Make sure to Mask TXD bit 0 as 0 if the control frame is not needed.
?
Hardware Controlled Control Frame
1. Mask TXD Bit 0 as 1 to request a subsequent control frame.
2. Set the HC bit (Register 0x01 bit 0) using the MAFE control data format in the next frame.
From this point on, there will be alternating data and control frames. Make sure not to miss this
sequence. This is needed to initialize the HC mode.
Example 1: Using the Software Controlled Control Frame:
static const U16 init_afe_config[] =
{
CTRL2|0x00, CTRL2|0x00,
CTRL_FRAME, CTRL13|0x00,
CTRL_FRAME, CTRL1|ENFE,
CTRL_FRAME, CTRL2|0x00,
CTRL_FRAME, GPIO|0x00,
CTRL_FRAME, GDIR|0xD0,
CTRL_FRAME, GIE|0x00,
CTRL_FRAME, GIP|0x00,
CTRL_FRAME, BGTRIM|0x00,
CTRL_FRAME, TEST|0x00,
CTRL_FRAME, CTRL08|AFE_CTRL08,
CTRL_FRAME, CTRL09|AFE_CTRL09,
CTRL_FRAME, CTRL10|AFE_CTRL10,
CTRL_FRAME, CTRL11|AFE_CTRL11,
CTRL_FRAME, CTRL12H|AFE_CTRL12H,
CTRL_FRAME, CTRL12L|AFE_CTRL12L,
CTRL_FRAME, RWB|GPIO,
CTRL_FRAME, RWB|GPIO,
// MUST HAVE Data(LSB=1), Control, Data(LSB=1), Control,.. FRAMES
// Force to Software controlled control frame
// Force to Xtal clock
// Enable Analog
//
//
// GPIO 7,6,4=in 5,3,2,1,0=output
// Timing chain set up
// Delay for 2 sample cycle time to
// let PLL settle before Lockdet
CTRL_FRAME, CTRL13|AFE_CTRL13
};
note: CTRL_FRAME = 0x0001
Example 2: Using the Automatic Control Frame (Hardware Controlled Control Frame)
static const U16 init_afe_config[] =
FRAMES
{
CTRL2|0x00, CTRL2|0x00,
CTRL_FRAME, CTRL13|0x00,
CTRL_FRAME, CTRL1|ENFE|HC,
0x0000, GPIO|0x00,
0x0000, GDIR|0xD0,
10
// MUST HAVE Dummy Data, Control, Dummy Data, Control,..
// Force to Software controlled control frame
// Force to Xtal clock
// Enable Analog
// Forces DATA to be 0x0000
// GPIO 7,6,4=in 5,3,2,1,0=output
Rev. 2.0
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| 73M1903C-IM/F1 | 功能描述:电信线路管理 IC RoHS:否 制造商:STMicroelectronics 产品:PHY 接口类型:UART 电源电压-最大:18 V 电源电压-最小:8 V 电源电流:30 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 安装风格:SMD/SMT 封装 / 箱体:VFQFPN-48 封装:Tray |
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