Intel CONTROLLERS 413808 - Manual (Page 36)

Intel
®
413808 and 413812—Introduction
Intel ® 413808 and 413812 I/O Controllers in TPER Mode
Developer’s Manual October 2007
36 Order Number: 317805-001US
1.0 Introduction
This document covers the Intel
®
413808 and 413812 I/O Controllers (4138xx). Note
that the 4138xx operates in multiple modes, depending on which mode, determines
when this manual is applicable. (In part or whole)
With 4138xx in I/O Controller Mode, the 4138xx is a stand-alone SAS/SATA I/O
Controller, the host driver interface to the 4138xx is via SLI protocol through the TPMI
1
unit. When in Operational Mode as an I/O Controller, there is no direct access to other
internal units such as PBI, GPIOs, UARTs etc., all access must be done via SLI (note
that some units have no SLI access API). In order to facilitate the programming of the
Flash device, the PBI may be accessed via the TPMI
1
when the transport firmware is
not running (cores in reset). This document is generally not applicable when in IOC
mode except for those situations where access to internal registers is required. (Flash
programming)
With 4138xx in TPER Mode, Third Party Embedded RAID (TPER) mode. The term
“TPER”can refer to a usage model, a silicon SKU, or a version of the transport firmware.
Using the term to describe a Usage Model simply means running intelligent RAID (non
host-based, typically simple levels such as 0/1/10 due to limited resources) without
burdening the I/O processor with external DDR2 costs. From the silicon view it is
essentially a DDR2-less 81348 (4138xx/4138xx ‘A’ version); a SKU where the memory
controller cannot be used. Because TPER mode is very similar to the 81348 from a
programming model perspective, the 81348 is sometimes referenced in collateral
discussing the 4138xx in TPER mode.
This manual is primarily intended for those using the 4138xx in TPER mode and much
of the content is identical to that of the 81348.
See
Table 1 1 for how the silicon and transport firmware are combined. See Figure 1,
“TPER Architecture Overview” on page 37 for an Architectural Overview.
1. The TPMI specification is available through your Intel representative.
Table 1. Intel
®
413808 and 413812 I/O Controllers in TPER Mode/Firmware Mapping
Silicon
Transport Firmware
Standard Transport FW TPER Transport FW
81348
Functional as a full featured I/O
Processor
Functional as a limited capability
I/O Processor and can be upgraded
to a full featured I/O Processor via
firmware upgrade (aka In Place
Upgrade).
4138xx in IOC mode
Functional as a full featured I/O
Controller
Not Supported
4138xx in TPER mode Not Supported
Functional as a limited capability
I/O Processor