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参数资料
型号： DS21FT44N+
厂商： Maxim Integrated Products
文件页数： 83/117页
文件大小： 0K
描述： IC FRAMER 4X4 16CH 300-BGA
产品培训模块： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装： 40
控制器类型： E1 调帧器
接口： 并行/串行
电源电压： 2.97 V ~ 3.63 V
电流 - 电源： 225mA
工作温度： -40°C ~ 85°C
安装类型： 表面贴装
封装/外壳： 300-BBGA
供应商设备封装： 300-PBGA（27x27）
包装： 管件
DS21FT44/DS21FF44
68 of 117
18.3. Internal Register Scheme Based On CRC4 Multiframe
On the receive side, there is a set of eight registers (RSiAF, RSiNAF, RRA, RSa4 to RSa8) that report the
Si and Sa bits as they are received. These registers are updated with the setting of the Receive CRC4
Multiframe bit in Status Register 2 (SR2.1). The host can use the SR2.1 bit to know when to read these
registers. The user has 2ms to retrieve the data before it is lost. The MSB of each register is the first
received. Please see the register descriptions below and the Transmit Data Flow diagram in Section 22 for
more details. On the transmit side, there is also a set of eight registers (TSiAF, TSiNAF, TRA, TSa4 to
TSa8) that by the Transmit Sa Bit Control Register (TSaCR), can be programmed to insert both Si and Sa
data. Data is sampled from these registers with the setting of the Transmit Multiframe bit in Status
Register 2 (SR2.5). The host can use the SR2.5 bit to know when to update these registers. It has 2ms to
update the data or else the old data will be retransmitted. The MSB of each register is the first bit
transmitted. Please see the register descriptions below and the Transmit Data Flow diagram in Section 22
for more details.
REGISTER
ADDRESS (HEX)
FUNCTION
RSiAF
58
The eight Si bits in the align frame.
RSiNAF
59
The eight Si bits in the non–align frame.
RRA
5A
The eight reportings of the receive remote alarm (RA).
RSa4
5B
The eight Sa4 reported in each CRC4 multiframe.
RSa5
5C
The eight Sa5 reported in each CRC4 multiframe.
RSa6
5D
The eight Sa6 reported in each CRC4 multiframe.
RSa7
5E
The eight Sa7 reported in each CRC4 multiframe.
RSa8
5F
The eight Sa8 reported in each CRC4 multiframe.
TSiAF
50
The eight Si bits to be inserted into the align frame.
TSiNAF
51
The eight Si bits to be inserted into the non-align frame.
TRA
52
The eight settings of remote alarm (RA).
TSa4
53
The eight Sa4 settings in each CRC4 multiframe.
TSa5
54
The eight Sa5 settings in each CRC4 multiframe.
TSa6
55
The eight Sa6 settings in each CRC4 multiframe.
TSa7
56
The eight Sa7 settings in each CRC4 multiframe.
TSa8
57
The eight Sa8 settings in each CRC4 multiframe.
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DS21Q348 功能描述:网络控制器与处理器 IC RoHS:否 制造商:Micrel 产品:Controller Area Network (CAN) 收发器数量: 数据速率: 电源电流（最大值）:595 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:PBGA-400 封装:Tray
DS21Q348B 功能描述:网络控制器与处理器 IC RoHS:否 制造商:Micrel 产品:Controller Area Network (CAN) 收发器数量: 数据速率: 电源电流（最大值）:595 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:PBGA-400 封装:Tray
DS21Q348DK 功能描述:网络开发工具 RoHS:否 制造商:Rabbit Semiconductor 产品:Development Kits 类型:Ethernet to Wi-Fi Bridges 工具用于评估:RCM6600W 数据速率:20 Mbps, 40 Mbps 接口类型:802.11 b/g, Ethernet 工作电源电压:3.3 V
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