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参数资料
| 型号： | MCZ33780EG |
| 厂商： | FREESCALE SEMICONDUCTOR INC |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | SPECIALTY MICROPROCESSOR CIRCUIT, PDSO16 |
| 封装： | 1.27 MM PITCH, ROHS COMPLIANT, SOIC-16 |
| 文件页数： | 24/37页 |
| 文件大小： | 851K |
| 代理商： | MCZ33780EG |
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Analog Integrated Circuit Device Data
30
Freescale Semiconductor
33780
FUNCTIONAL DEVICE OPERATION
LOGIC COMMANDS AND REGISTERS
DnCTRL REGISTER
The read/write DnCTRL register sets up conditions to be
used on the DBUS. There are two of these registers, one for
each of the buses. The bit assignments are shown in
Figure 28. Dn Control Register Bit Assignment
Each output n has an associated DnCTRL register. This
register should be written to before data is sent over its bus.
A write to the register will abort any current activity on the bus.
Any bit changes will take place on the next DBUS transaction
following the conclusion of the SPI write to the register. Refer
to the Protocol Engine section for more detail.
DLY[B:A]–Interframe Delay for Channel n
These bits specify the minimum delay between transfer
frames on the bus as illustrated in Table 9. For example,
when DLY[B:A] is set to 00, there is a minimum of four bit
times of IDLE voltage level. The time is measured from the
end of a DBUS transaction (signaled by the start of the signal
high to IDLE voltage transition) to the start of a new DBUS
transaction (signaled by the start of the IDLE voltage to signal
high transition).
RIE–Receive Interrupt Enable Channel n
0 = Receive interrupt disabled. RFNE status does not
affect INT pin.
1 = Receive interrupt enabled. Whenever the RFNE
status flag is 1, the INT pin will be low to request an
interrupt.
TIE–Transmit Interrupt Enable Channel n
0 = Transmit interrupt disabled. TFE status does not
affect INT pin.
1 = Transmit interrupt enabled. Whenever the TFE
status flag is 1, the INT pin will be low to request an
interrupt.
MS–Message Size for Channel n
0 = Long Word.
1 = Short Word
The Long Word will contain 16 bits of data and 0 to 8 bits
of CRC. The Short Word can be made to have between 8 and
15 bits of data and 0 to 8 bits of CRC. Long words are
generally used for configuration and setup messages. Short
words are generally used for DBUS data transactions.
DIV[1:0]–Clock Divider
The DIV bits set a pre-scaler for the bit clock to allow the
bit rate to be reduced by selectable integer values. The
divider values are shown in Table 10. The clock divider is
used during fixed frequency operation and is ignored when in
the spread-spectrum mode.
DEN Register
This read/write register is used to enable or disable each
of the busses. It also allows the state of the thermal
shutdowns to be read. The bit assignments are shown in
Figure 29. If a thermal shutdown occurs, the output of the bus
driver will be tri-stated and the receive current detector
disabled. This will result in an all 0 response, which will cause
a CRC error.
Figure 29. DEN Register Bits
SPI Data Bit
Bit 7
6
5
4
3
2
1
0
Read/Write
DIV1
DIV0
DLYB
DLYA
RIE
TIE
0
MS
Reset
0
Table 9. DLY[B:A] Frame Spacing
DLY[B:A]
Minimum Delay Between Frames
(Bit Times)
00
4
01
5
10
6
11
8
Table 10. Clock Divider
DIV[1:0]
N
00
1
01
2
10
4
11
8
SPI Data Bit
Bit 7
6
5
4
3
2
1
0
Read/Write
TS1
(Read-Only)
TS0
(Read-Only)
0
EN1
EN0
Reset
0
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MCZ33780EG | 制造商:Freescale Semiconductor 功能描述:DUAL DBUS MASTER INTERFACE 16SOIC |
| MCZ33780EGR2 | 功能描述:多路器开关 IC DBUS MASTER RoHS:否 制造商:Texas Instruments 通道数量:1 开关数量:4 开启电阻（最大值）:7 Ohms 开启时间（最大值）: 关闭时间（最大值）: 传播延迟时间:0.25 ns 工作电源电压:2.3 V to 3.6 V 工作电源电流: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UQFN-16 |
| MCZ33781EK | 功能描述:输入/输出控制器接口集成电路 DBUS2 MASTER STND RoHS:否 制造商:Silicon Labs 产品: 输入/输出端数量: 工作电源电压: 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:QFN-64 封装:Tray |
| MCZ33781EKR2 | 功能描述:输入/输出控制器接口集成电路 DBUS2 MASTER STND RoHS:否 制造商:Silicon Labs 产品: 输入/输出端数量: 工作电源电压: 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:QFN-64 封装:Tray |
| MCZ33784EF | 功能描述:加速计 - 板上安装 DBUS2 SENSOR INTERFACE RoHS:否 制造商:Murata 传感轴:Double 加速:12 g 灵敏度: 封装 / 箱体: 输出类型:Analog 数字输出 - 位数:11 bit 电源电压-最大:5.25 V 电源电压-最小:4.75 V 电源电流:4 mA 最大工作温度:+ 125 C 最小工作温度:- 40 C |
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