參數(shù)資料
型號(hào)： MCZ33780EG
廠商： Freescale Semiconductor
文件頁數(shù)： 25/37頁
文件大?。?/td> 0K
描述： IC MASTER DUAL DBUS DIFF 16-SOIC
標(biāo)準(zhǔn)包裝： 47
系列： *
應(yīng)用： *
接口： *
電源電壓： *
封裝/外殼： 16-SOIC（0.295"，7.50mm 寬）
供應(yīng)商設(shè)備封裝： 16-SOIC W
包裝： 管件
安裝類型： 表面貼裝
產(chǎn)品目錄頁面： 808 (CN2011-ZH PDF)
Analog Integrated Circuit Device Data
Freescale Semiconductor
31
33780
FUNCTIONAL DEVICE OPERATION
LOGIC COMMANDS AND REGISTERS
TSn – Indicates a Thermal Shutdown on Channel n
0 = No thermal shutdown occurring on Channel n.
1 = Thermal shutdown has occurred on Channel n.
The TSn bits are latched when a thermal shutdown occurs
for a minimum of 16 clock cycles. The TSn bits are cleared
after a read of the DEN register if no longer in thermal
shutdown.
ENn – Controls Enabling and Disabling of Channel n
0 = Channel n is disabled.
1 = Channel n is enabled.
The ENn bits are cleared and the channel disabled if a
thermal shutdown occurs. It is necessary to write a 1 to the
ENn bit to turn it back on.
DnPOLY REGISTERS
These read/write registers control the polynomial used for
calculating the CRC that is transmitted/received on the DBUS
channels. There are two of these registers, one for each
DBUS channel. The bit assignments are shown in Figure 30.
Figure 30. Dn Polynomial Register Bit Assignments
Each bit represents a polynomial term in the CRC
equation. Bit 7 represents x7, bit 6 represents x6, and so on.
Both the short and long word command use the same
polynomial. The polynomial bits beyond what is specified in
the CRCLEN[3:0] registers are ignored, and the most
significant term of each polynomial is assumed to be on. So,
for example, to represent a 6-bit CRC with a polynomial of
x6+ x3 + 1, the value in DnPOLY is xx001001. Bits 7 and 6 are
ignored in this case. These registers reset to 00010001 (x4 +
1), which is the default DSI value (bit 4 does not need to be
on for this case but is included for readability).
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.
DnSEED REGISTERS
These read/write registers control the initial value, or seed,
used for calculating the CRC that is transmitted/received on
the DBUS channels. There are two of these registers, one for
each DBUS channel. The bit assignments are shown in
Figure 31. Dn CRC Seed Register Bit Assignments
The bits in these registers form a word that is used as the
seed for the CRC calculations. Both the short and long word
commands use the same seed. The seed bits beyond what is
specified in the CRCLEN[3:0] registers are ignored. So, for
example, to represent a 6-bit CRC with a seed 010101, the
value in DnSEED is xx010101. Bits 7 and 6 are ignored in this
case. These registers reset to 00001010, which is the default
DBUS value.
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.
DnLENGTH REGISTERS
These read/write registers control the short word lengths
and CRC lengths for data that is transmitted/received on the
DBUS channels. There are two of these registers, one for
each DBUS channel. The bit assignments are shown in
Figure 32. Dn Short Word and CRC Length Register Bit Assignments
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.
SPI Data Bit
Bit 7
6
5
4
3
2
1
0
Read/Write
CRCPOLY7 CRCPOLY6 CRCPOLY5 CRCPOLY4 CRCPOLY3 CRCPOLY2 CRCPOLY1 CRCPOLY0
Reset
0
1
0
1
SPI Data Bit
Bit 7
6
5
4
3
2
1
0
Read/Write
CRCSEED7 CRCEED6
CRCEED5
CRCEED4
CRCEED3
CRCEED2
CRCEED1
CRCEED0
Reset
0
1
0
1
0
SPI Data Bit
Bit 7
6
5
4
3
2
1
0
Read/Write
SWLEN3
SWLEN2
SWLEN1
SWLEN0
CRCLEN3
CRCLEN2
CRCLEN1
CRCLEN0
Reset
1
0
1
0
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MCZ33780EG 制造商:Freescale Semiconductor 功能描述:DUAL DBUS MASTER INTERFACE 16SOIC
MCZ33780EGR2 功能描述:多路器開關(guān) IC DBUS MASTER RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 開關(guān)數(shù)量:4 開啟電阻（最大值）:7 Ohms 開啟時(shí)間（最大值）: 關(guān)閉時(shí)間（最大值）: 傳播延遲時(shí)間:0.25 ns 工作電源電壓:2.3 V to 3.6 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UQFN-16
MCZ33781EK 功能描述:輸入/輸出控制器接口集成電路 DBUS2 MASTER STND RoHS:否 制造商:Silicon Labs 產(chǎn)品: 輸入/輸出端數(shù)量: 工作電源電壓: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-64 封裝:Tray
MCZ33781EKR2 功能描述:輸入/輸出控制器接口集成電路 DBUS2 MASTER STND RoHS:否 制造商:Silicon Labs 產(chǎn)品: 輸入/輸出端數(shù)量: 工作電源電壓: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-64 封裝:Tray
MCZ33784EF 功能描述:加速計(jì) - 板上安裝 DBUS2 SENSOR INTERFACE RoHS:否 制造商:Murata 傳感軸:Double 加速:12 g 靈敏度: 封裝 / 箱體: 輸出類型:Analog 數(shù)字輸出 - 位數(shù):11 bit 電源電壓-最大:5.25 V 電源電壓-最小:4.75 V 電源電流:4 mA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C
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