MIC281
Micrel
Manufacturer ID Register (MFG_ID)
8-bits, read-only
Manufacturer ID Register
D[7]
read-only
0
BIT(S)
D[7:0]
D[6]
read-only
0
FUNCTION
D[5]
read-only
1
D[4]
read-only
0
D[3]
read-only
1
D[2]
read-only
0
D[1]
read-only
1
Operation*
D[0]
read-only
0
Power-up default value:
Read command byte:
Identifies Micrel as the manufacturer of the device. Always returns 2A
h
.
0010 1010
b
= 2A
h
1111 1110
b
= FE
h
Read-only. Always returns 2A
h
.
Die Revision Register (DIE_REV)
8-bits, read-only
Die Revision Register
D[7]
read-only
D[6]
read-only
D[5]
read-only
D[4]
read-only
D[3]
read-only
D[2]
read-only
D[1]
read-only
D[0]
read-only
MIC281 DIE REVISION NUMBER
Bit(s)
D[7:0]
Function
Identifies the device revision number
Operation*
Read-only
Power-up default value:
Read command byte:
[Device revision number]
h
1111 1111
b
= FF
h
November 2004
9
MIC281
MICREL [ MICREL SEMICONDUCTOR ]
