參數(shù)資料
型號: DS2480
廠商: Maxim Integrated Products, Inc.
英文描述: Serial 1-Wire Line Driver(1線串行線驅(qū)動器)
中文描述: 串行、1-Wire線驅(qū)動器
文件頁數(shù): 11/26頁
文件大?。?/td> 191K
代理商: DS2480
DS2480
042498 11/26
The syntax of configuration commands is very simple.
Each 8–bit code word contains a 3–bit parameter code
to specify the parameter and the 3–bit value code to be
selected. Bit 7 of the command code is set to 0 and bit 0
is always a 1. To read the value code of a parameter, one
writes all zeros for the parameter code and puts the
parameter code in place of the parameter value code.
Table 5 shows the details.
The configuration command response byte is similar to
the command byte itself. Bit 0 of the response byte is
always 0. When writing a parameter, the upper 7 bits are
the echo of the command code. When reading a param-
eter, the current value code is returned in bit positions 1
to 3 with the upper 4 bits being the same as sent (see
Table 6).
CONFIGURATION COMMAND CODES
Table 5
FUNCTION
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
Write Parameter
0
parameter code
parameter value code
1
Read Parameter
0
0
0
0
parameter code
1
CONFIGURATION COMMAND RESPONSE BYTE
Table 6
FUNCTION
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
Write Parameter
0
same as sent
same as sent
0
Read Parameter
0
same as sent
parameter value code
0
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