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参数资料
| 型号： | L6670 |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 模拟信号调理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, PDSO24 |
| 封装： | SO-24 |
| 文件页数： | 6/9页 |
| 文件大小： | 73K |
| 代理商： | L6670 |
L6670
6/9
The Read FIFO command consists of 24 clocks or bits.
bit0 :READ bit.The value is1.
bit 1-3 : chip ID. ID(2:0)=110.
bit 4-7 : FIFO address.
The FIFO has four registers grouped into two banks. The first bank consists of the first and the second register.
The first register is the one written first since the last read. The second bank consists of the third and fourth
register.
000x: address for the first bank
001x: address for the second bank
bit 8-23: FIFO data.
The MU05 puts out first the data of the first register of the bank with the MSB first.
2.
MU05 REGISTERS
The following is the address AD(3:0) of the registers.
AD(3:0) = 0100 CTRL_REG
This is the control register. It has 8 bits. The following gives the description of the bits.
Note: x means don't care value. Note: default value after power on reset is 0000 0000.
xxx1 xxxx: set to internal clock. By default the clock is external via pin VARIE.
xx1x xxxx: low power mode for the EPROM.
1xxx xxxx: clip on. The result of the multiplier is clipped to 0111 1111 when greater than 127 or
1000 0000 when less than -128.
xxxx 0001: bitstream in mode. The bitstream is sent in via pin Test_Funct while CK1M6 (bitstream
clock) is sent in via pin VARIE and the output can be checked via the Serial Interface.
xxxx 0010: bitstream out mode. The bitstream is sent out to the pin SPC while CK1M6 is sent out
to the pin SPE and phase_16 (digital filter clock) is sent out to the pin SPD. The pin
Test_ST
must be set to 9 volts.
xxxx 0100: EPROM write. Writing to a register (see below) also addresses the EPROM and with
the pin HV_Eprom = 15 volts, moving the pin Test_funct to 5 volts the EPROM is
written with the same contents as with the register.
xxxx 0101: EPROM read. Sending a read register command reads the EPROM instead of the
register.
xxxx 0110: sensor offset actuation.
xxxx 0111: sensor offset trim.
xxxx 1000: common mode feed-back trim.
AD(3:0)= 1000 GAIN_LSB
This is the 8 LSB of the gain for the digital filter.
AD(3:0)= 1001 GAIN_MSB
This is the 8 MSB of the gain for the digital filter.
AD(3:0)= 1010 OFFS_LSB
This is the 8 LSB of the offset for the digital filter.
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