vsc055xkm-01 Maxim Integrated Products, Inc., vsc055xkm-01 Datasheet - Page 5

• Manufacturer Part Number: vsc055xkm-01
• Description: Enhanced I?c Backplane Controller
• Manufacturer: Maxim Integrated Products, Inc.

VSC055-01
Data Sheet
Contents
General Description..................................................................................................... 1
Features ........................................................................................................................ 1
Applications ................................................................................................................. 1
Typical Applications .................................................................................................... 3
Revision History........................................................................................................... 9
1
2
3
Introduction ....................................................................................................... 10
Functional Descriptions ................................................................................... 11
2.1
2.2
2.3
2.4
2.5
Registers ............................................................................................................ 15
3.1
3.2
Two-Wire Serial Interface ............................................................................................................11
Control Registers .........................................................................................................................11
I/O Logic ......................................................................................................................................13
Clock Generator ..........................................................................................................................13
Power-on Reset ...........................................................................................................................14
Control Registers .........................................................................................................................15
Control Register Definitions .........................................................................................................21
3.2.1
3.2.2
3.2.3
3.2.4
3.2.5
3.2.6
3.2.7
3.2.8
3.2.9
3.2.10 11h: I/O Port 1 Data Direction (DDP1) ...........................................................................26
3.2.11 12h: I/O Port 2 Data Direction (DDP2) ...........................................................................26
3.2.12 13h: I/O Port 3 Data Direction (DDP3) ...........................................................................27
3.2.13 14h: I/O Port 4 Data Direction (DDP4) ...........................................................................27
3.2.14 15h: I/O Port 5 Data Direction (DDP5) ...........................................................................28
3.2.15 16h: I/O Port 6 Data Direction (DDP6) ...........................................................................28
3.2.16 17h: I/O Port 7 Data Direction (DDP7) ...........................................................................29
3.2.17 20h: Port Bypass Control 0 (PBC0) ...............................................................................30
3.2.18 21h: Port Bypass Control 1 (PBC1) ...............................................................................31
3.2.19 22h: Port Bypass Control 2 (PBC2) ...............................................................................32
3.2.20 23h: Port Bypass Control 3 (PBC3) ...............................................................................33
3.2.21 24h: Port Bypass Control 4 (PBC4) ...............................................................................34
3.2.22 25h: Port Bypass Control 5 (PBC5) ...............................................................................35
3.2.23 26h: Port Bypass Control 6 (PBC6) ...............................................................................36
00h: General-Purpose I/O Port 0 Data (GPD0) .............................................................21
01h: General-Purpose I/O Port 1 Data (GPD1) .............................................................22
02h: General-Purpose I/O Port 2 Data (GPD2) .............................................................22
03h: General-Purpose I/O Port 3 Data (GPD3) .............................................................23
04h: General-Purpose I/O Port 4 Data (GPD4) .............................................................23
05h: General-Purpose I/O Port 5 Data (GPD5) .............................................................24
06h: General-Purpose I/O Port 6 Data (GPD6) .............................................................24
07h: General-Purpose I/O Port 7 Data (GPD7) .............................................................25
10h: I/O Port 0 Data Direction (DDP0) ...........................................................................25
5 of 133
January 2008
Revision 4.1