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參數(shù)資料
| 型號： | TC1322EOA |
| 廠商： | Microchip Technology Inc. |
| 英文描述： | 12-Bit Digital-to-Analog Converter with Two-Wire Interface |
| 中文描述： | 12位數(shù)字到模擬轉換器兩線接口 |
| 文件頁數(shù)： | 10/16頁 |
| 文件大小： | 445K |
| 代理商： | TC1322EOA |
TC1322
DS21388B-page 10
2002 Microchip Technology Inc.
4.6
Register Set and Programmer’s
Model
TABLE 4-2:
TC1322 COMMAND SET
(SMBus READ_BYTE AND
WRITE_BYTE)
TABLE 4-3:
CONFIGURATION REGISTER
(CONFIG), 8-BIT, READ/WRITE
TABLE 4-4:
DATA REGISTER (DATA),
12-BIT, READ/WRITE
The DAC output voltage is a function of reference volt-
age and the binary value of the contents of the register
DATA. The transfer function is given by the expression:
EQUATION 4-1:
4.7
Register Set Summary
The TC1322’s register set is summarized in Table 4-5
below. All registers are 12-bits wide.
TABLE 4-5:
TC1322 REGISTER SET
SUMMARY
Command Byte Description
Command
Code
Function
RWD
RWCR
00h
01h
Read/Write Data (DATA)
Read/Write Configuration
(CONFIG)
Configuration Register (CONFIG)
D[7]
D[6]
D[5]
D[4]
D[3]
D[2]
D[1]
D[0]
Reserved
Function
Standby Switch
SHDN
Bit
D[0]
POR
0
Type
Read/
Write
N/A
Operation
1 = Standby
0 = Normal
N/A
D[7]-D[1]
0
Reserved;
Always returns
Zero when Read
Data Register (DATA) for 1st Byte
D[11]
D[0]
D[9]
D[8]
D[7]
D[6]
D[5]
D[4]
MSB
X
X
X
X
X
X
LSB
Data Register (DATA) for 2nd Byte
D[3]
D[2]
D[1]
D[0]
X
X
X
X
X
X
X
LSB
X
X
X
X
Name
Description
POR State
Read Write
Data
Data Register
(2-Byte Format)
000000000000b
X
X
Config CONFIG Register
0000 0000b
X
X
V
OUT
= V
REF
x
DATA
4096
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