MIC2591B_05 Datasheet, PDF (23/34 Pages) Micrel Semiconductor – Dual-Slot PCI Express Hot-Plug Controller

MIC2591B
MIC2591B Register Set and Programmer’s Model
Target Register
Command Byte Value
Label
RESULT
ADC_CNTRL
CNTRLA
CNTRLB
STATA
STATB
CS
Reserved
Description
Read
ADC Conversion Result Register
00_h
ADC Control Register
01_h
Control Register Slot A
02_h
Control Register Slot B
03_h
Slot A Status
04_h
Slot B Status
05_h
Common Status Register
06_h
Reserved / Do Not Use
07h - FF_h
Table 2. MIC2591B Register Addresses
Write
na
01_h
02_h
03_h
04_h
05_h
06_h
07h - FF_h
Micrel
Power-On
Default
xx_h
00_h
00_h
00_h
00_h
00_h
xxxx 0000_b
Undefined
Inputs
MIC2591B Device Address
A2 A1 A0
Binary
Hex
0
0
0 1000 000X*_b
80_h
0
0
1
1000 001X_b
82_h
0
1
0
1000 010X_b
84_h
0
1
1
1000 011X_b
86_h
1
0
0
1000 100X_b
88_h
1
0
1
1000 101X_b
8A_h
1
1
0
1000 110X_b
8C_h
1
1
1
1000 111X_b
8E_h
* Where X = '1' for READ and '0' for WRITE
Table 3. MIC2591B SMBus Addressing
March 2005
23
M9999-033105