參數(shù)資料
型號(hào)： LTC1090M
廠商： Linear Technology Corporation
英文描述： Single Chip 10-Bit Data Acquisition System
中文描述： 單芯片10位數(shù)據(jù)采集系統(tǒng)
文件頁(yè)數(shù)： 16/28頁(yè)
文件大?。?/td> 344K
代理商： LTC1090M
16
LTC1090
1090fc
Motorola SPI (MC68HC05C4)
The MC68HC05C4 transfers data MSB first and in 8-bit
increments. Programming the LTC1090 for MSB first
format and 16-bit word length allows the 10-bit data
output to be received by the MPU as two 8-bit bytes with
the final 6 unused bits filled with zeroes by the LTC1090.
Hardware and Software Interface to Motorola MC68HC05C4
Processor
Hitachi Synchronous SCI (HD63705)
The HD63705 transfers serial data in 8-bit increments,
LSB first. To accommodate this, the LTC1090 is
programmed for 16-bit word length and LSB first format.
The 10-bit output data is received by the processor as two
8-bit bytes, LSB first. The LTC1090 fills the final 6 unused
bits (after the MSB) with zeroes in unipolar mode and with
the sign bit in bipolar mode.
Hardware and Software Interface to Hitachi HD63705 Processor
APPLICATIOU
W
U
U
MNEMONIC
DESCRIPTION
BCLR n
LDA
STA
↑
NOP
↓
LDA
LDA
STA
STA
↑
NOP
↓
BSET n
LDA
LDA
STA
C0 is cleared (CS goes Low)
Load D
IN
for LTC1090 into ACC
Load D
IN
from ACC to SPI data reg. Start SCK
8 NOPs for timing
Load contents of SPI status reg. into ACC
Load LTC1090 D
OUT
from SPI data reg. into ACC (byte 1)
Load LTC1090 D
OUT
into RAM (location A)
Start next SPl cycle
6 NOPs for timing
C0 is set (CS goes high)
Load contents of SPI status reg. into ACC
Load LTC1090 D
OUT
from SPI data reg. into ACC (byte 2)
Load LTC1090 D
OUT
into RAM (location A + 1)
LTC1090
ANALOG
INPUTS
D
OUT
D
OUT
from LTC1090 stored in MC68HCO5C4 RAM
MSB*
B8 B7 B6 B5 B4 B3 B2
D
IN
SCLK
CO
SCK
MOSI
MISO
MC68HCO5C4
CS
B9
Location A
Location A + 1
byte 1
byte 2
*B9 is MSB in unipolar or sign bit in bipolar
LSB
B1 B0
0
0
0
0
0
0
LTC1090 AI12
MNEMONIC
DESCRIPTION
LDA
BCLR n
STA
Load D
IN
word for LTC1090 into ACC from RAM
C0 cleared (CS goes low)
Load D
IN
word for LTC1090 into SCI data reg. from ACC
and start clocking data (LSB first)
↑
NOP
↓
LDA
6 NOPs for timing
Load contents of SCI data reg. into ACC (byte 1)
Start next SCI cycle
Load LTC1090 D
OUT
word into RAM (Location A)
Timing
C0 set (CS goes high)
Load contents of SCI data reg. into ACC (byte 2)
Load LTC1090 D
OUT
word into RAM (Location A + 1)
STA
NOP
BSET n
LDA
STA
LTC1090
ANALOG
INPUTS
D
OUT
D
OUT
from LTC1090 stored in HD63705 RAM
D
IN
SCLK
C0
CK
T
X
R
X
HD63705
CS
B7
Sign
B9 B9 B9 B9 B9 B9 B9 B8
Location A
Location A + 1
Bipolar
byte 1
byte 2
LSB
B6 B5 B4 B3 B2 B1 B0
LTC1090 AI13
B7
Location A
Location A + 1
Unipolar
byte 1
byte 2
LSB
MSB
0 B9 B8
B6 B5 B4 B3 B2 B1 B0
0
0
0
0
0
相關(guān)PDF資料
PDF描述
LTC1090MJ Single Chip 10-Bit Data Acquisition System
LTC1091AC 1-, 2-, 6- and 8-Channel, 10-Bit Serial I/O Data Acquisition Systems
LTC1091ACN8 1-, 2-, 6- and 8-Channel, 10-Bit Serial I/O Data Acquisition Systems
LTC1091CN8 1-, 2-, 6- and 8-Channel, 10-Bit Serial I/O Data Acquisition Systems
LTC1093ACN 1-, 2-, 6- and 8-Channel, 10-Bit Serial I/O Data Acquisition Systems
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LTC1090MJ 制造商:LINER 制造商全稱:Linear Technology 功能描述:Single Chip 10-Bit Data Acquisition System
LTC1090MJ/883 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Single-Ended Data Acquisition System
LTC1091 制造商:LINER 制造商全稱:Linear Technology 功能描述:1-, 2-, 6- and 8-Channel, 10-Bit Serial I/O Data Acquisition Systems
LTC1091AC 制造商:LINER 制造商全稱:Linear Technology 功能描述:1-, 2-, 6- and 8-Channel, 10-Bit Serial I/O Data Acquisition Systems
LTC1091ACJ8 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Single-Ended Data Acquisition System
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