LSISASX12 LSI, LSISASX12 Datasheet - Page 29

• Manufacturer Part Number: LSISASX12
• Manufacturer: LSI

Specifications of LSISASX12

• Lead Free Status / Rohs Status: Not Compliant

2.1.5.4
SIO Functional Description
Section 2.6, “GPIO/LED and SIO Configuration,” on page 2-23
more information on the configuration of the GPIO and LED signals.
The LSISASx12 transmits SGIO information on a serial interface to
external logic. The SIO interface has BlinkClkin, BlinkClkout, SioClkin,
Siolkout, SioDout, SioStart, SioEnd, and SioDin signals. SioStart and
SioEnd control the input and output data streams, SioDout and SioDin.
The SIO signals are mapped to the LSISASx12 GPIO/LED signals.
The LSISASx12A provides enhanced SGPIO support which is not
available on the LSISASx12. The enhanced functionality enables
additional data modulation for blink rates and blink patterns. The
LSISASx12A also provides programmable LED/GPIO on/off times.
Configuration of the enhanced SGPIO interface is accomplished through
SMP register write commands.
Table 2.1
GPIO/LED signal-pin mapping. More information on the SIO interface is
available in
“Multiplexed SIO Interface,” on page
descriptions on pages
Block Diagram Description
Copyright © 2004, 2005 by LSI Logic Corporation. All rights reserved.
Fault LED – typically supported by the LED_FAULT[11:0]/ signals
Cable Detection – typically supported by the CBL_DET[11:0]/ signals
General GPIO – typically supported by the GPIO[3:0] signals
describes the interface signals and provides the SIO to
Section 2.6.2, “SIO Configuration,” on page
4-55
to
4-66
3-7, and in the SIO register
2-26,
Section 3.7,
provides
2-7