Micrel, Inc.
MIC2593
 
September 2008 
16
M9999-092208
 
Register Set and Programmers Model
Target Register
Common
Byte Value
Label
Description
Read
Write
Power-On
Default
RESERVED
Do not Use
00
h
 
n/a
n/a
RESERVED
Do not Use
01
h
 
n/a
n/a
CNTRLA
Control Register Slot A
02
h
 
02
h
 
00
h
 
CNTRLB
Control Register Slot B
03
h
 
03
h
 
00
h
 
STATA
Slot A Status
04
h
 
04
h
 
00
h
 
STATB
Slot B Status
05
h
 
05
h
 
00
h
 
CS
Common Status Register
06
h
 
06
h
 
Xxxx 0000
b
 
RESERVED
Reserved / Do not Use
07
h
 0FF
h
 
07
h
 0FF
h
 
Undifined
Table 4. MIC2593 Register Addresses
 
 
S   1   0   0   1
0   A   0   0   0   0   0   0   X  X  A
A  P
MIC2593 Slave Address
DATA
CLK
Command Byte to MIC2593
Data Byte to MIC2593
START
STOP
R/W = WRITE
ACKNOWLEDGE
ACKNOWLEDGE
ACKNOWLEDGE
Master to slave transfer,
i.e., DATA driven by master.
Slave to master transfer,
i.e., DATA driven by slave.
 
Figure 9.WRITE_BYTE Protocol
 
 
 
S   1   0   0   1  A2 A1 A0
A2 A1 A0
0   A   0   0   0   0   0   0   X  X  A  S   1
1
1
0   0
A
/A  P
MIC2593 Slave Address
DATA
CLK
Command Byte to MIC259
MIC2593 Slave Address
Data Read From MIC2593
START
START
STOP
R/W = WRITE
R/W = READ
ACKNOWLEDGE
ACKNOWLEDGE
ACKNOWLEDGE
NOT ACKNOWLEDGE
Master to slave transfer,
i.e., DATA driven by master.
Slave to master transfer,
i.e., DATA driven by slave.
 
Figure 10.READ_BYTE Protocol
 
 
S   1   0   0   1
1   A
/A  P
MIC2593 Slave Address
DATA
CLK
Byte Read from MIC2593
START
STOP
R/W = READ
ACKNOWLEDGE
NOT ACKNOWLEDGE
Master to slave transfer,
i.e., DATA driven by master.
Slave to master transfer,
i.e., DATA driven by slave.
 
Figure 11.RECEIVE_BYTE Protocol
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