SSC050-01 Datasheet, PDF (2/79 Pages) Maxim Integrated Products – Two-Wire Serial Backplane Controller

Contents
Contents
SSC050-01
Data Sheet
Revision History
Chapter 1
Introduction....................................................................................... 1-1
Feature Summary ..............................................................................................................1-2
Typical Applications ...........................................................................................................1-3
FC-AL Drive Enclosure Configuration .......................................................................1-3
General Purpose I/O Configuration ...........................................................................1-3
Chapter 2
Functional Description..................................................................... 2-1
Two-wire Serial Interface ...................................................................................................2-1
Control Registers ...............................................................................................................2-2
I/O Logic ............................................................................................................................2-3
Clock Generator ................................................................................................................2-3
Power-On Reset ................................................................................................................2-3
Chapter 3
Pin Description ................................................................................. 3-1
Functional Signal Grouping ...............................................................................................3-1
Pinout Diagram ..................................................................................................................3-2
Pin Description List ............................................................................................................3-3
Chapter 4
Control Registers ............................................................................. 4-1
Register Map .....................................................................................................................4-1
Address Map .....................................................................................................................4-4
Control Register Definition ................................................................................................4-6
00h: General Purpose I/O Port 0 Data (GPD0) .........................................................4-6
01h: General Purpose I/O Port 1 Data (GPD1) .........................................................4-7
02h: General Purpose I/O Port 2 Data (GPD2) .........................................................4-7
03h: General Purpose I/O Port 3 Data (GPD3) .........................................................4-8
04h: General Purpose I/O Port 4 Data (GPD4) .........................................................4-8
10h: I/O Port 0 Data Direction (DDP0) ......................................................................4-9
11h: I/O Port 1 Data Direction (DDP1) ......................................................................4-9
12h: I/O Port 2 Data Direction (DDP2) ....................................................................4-10
13h: I/O Port 3 Data Direction (DDP3) ....................................................................4-10
14h: I/O Port 4 Data Direction (DDP4) ....................................................................4-11
20h: Port Bypass Control 0 (PBC0) .......................................................................4-12
21h: Port Bypass Control 1 (PBC1) .......................................................................4-13
22h: Port Bypass Control 2 (PBC2) .......................................................................4-14
23h: Port Bypass Control 3 (PBC3) .......................................................................4-15
24h: Port Bypass Control 4 (PBC4) .......................................................................4-16
25h: Port Bypass Control 5 (PBC5) .......................................................................4-17
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Revision 4.0
November 10, 2004