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SPIF225A Schematic ( PDF Datasheet ) - Sunplus

Teilenummer SPIF225A
Beschreibung USB and eSTAT to Serial-ATA Bridge
Hersteller Sunplus
Logo Sunplus Logo 




Gesamt 24 Seiten
SPIF225A Datasheet, Funktion
www.DataSheet4U.com
SPIF225A
USB and eSATA to Serial-ATA Bridge
JAN. 25, 2007
Version 1.1
Sunplus Innovation Technology reserves the right to change this documentation without prior notice. Information provided by Sunplus Innovation Technology
is believed to be accurate and reliable. However, Sunplus Innovation Technology makes no warranty for any errors which may appear in this document.
Contact Sunplus Innovation Technology to obtain the latest version of device specifications before placing your order. No responsibility is assumed by
Sunplus Innovation Technology for any infringement of patent or other rights of third parties which may result from its use. In addition, SunplusIT products are
not authorized for use as critical components in life support devices/ systems or aviation devices/systems, where a malfunction or failure of the product may
reasonably be expected to result in significant injury to the user, without the express written approval of SunplusIT.






SPIF225A Datasheet, Funktion
5.SIGNAL DESCRIPTIONS
5.1. Pin Descriptions
Table 5-1: Pin Types
Pin Type
I/O
I
O
T
www.DataSheet4U.com
A
USB
SATA
Bi-directional Pin
Input Pin
Output Pin
Tri-state Output Pin
Analog pin
USB D+ D-
SATA TX+ TX- RX+ RX-
5.2. Pin Diagram
5.2.1. TQFP64
Pin Description
SPIF225A
Figure 5-1 SPIF225A Pin Diagram
© Sunplus Innovation Technology Inc.
Proprietary & Confidential
6
Jan, 25, 2007
Version: 1.1

6 Page









SPIF225A pdf, datenblatt
SPIF225A
For full-speed device, it will raise pull up resistor at D+ to create
an IDLE-J situation. If the device is unplugged or want to create
software disconnect situation by take out pull up resistor, host will
detect D+D- is changing from IDLE-J to SE0 and recognize as
device unplugged.
For high-speed device, host will keep sending SOF packet in idle
situation. Because both host and device has 45ohm pull down
termination resistor, the voltage level is normal. If device
unplugged or want to create software disconnect situation by take
out its pull down resistor, the voltage level is twice as normal
voltage because equivalent resistor is increased.
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Device detect host method
VBUS rise
Host detect device method
D+ rise
speed emulation pass
host
absent
host
present
VBUS fall
device
absent
full speed
device
present
high speed
device
present
D+ fall during idle
SOF voltage level too large
(termination resistor at
device disappear)
Fig 6-1: USB Hot Plug Mechanism
6.2.2. SATA Hot-Plug Support
SATA use differential signal squelch level to detect if host/device is
present. Host will keep sending (can be disable to reduce power
consumption) OOB signal to let device detect its present. If a
device received host OOB signal, it will also return OOB signal to
let host detect its present and communication channel is
established.
If any site is unplug or create a software disconnect situation by
stop it transmitter from sending differential signal, the other site
will sense the differential signal disappear and know the other site
is unplugged.
Device detect host method
RX differential signal show
OOB of comm reset
Host detect device method
Periodically TX OOB comm reset signal
until received comm init from RX
host
absent
host
present
device
absent
device
present
RX differential
signal disappear
RX differential
signal disappear
Fig 6-2: SATA Hot Plug Mechanism
6.2.3. SPIF225A Hot-Plug Support
SPIF216A can perform software USB disconnect function by
taking out 45ohm termination in high speed or taking out 1.5K pull
up resistor on DP in full speed. All SATA device connection status
will all reflect on USB site. For example, if SPIF216A is plugged
into USB host without SATA device connection. SPIF216 will
perform USB software disconnection and users will not see any
USB device plugged in information. If SATA device is plugged in
later, SPIF216 will restart its USB connection procedure and users
will see a new USB device plugged in. If SATA device is suddenly
unplugged, SPIF216A will also perform USB software
disconnection to show users an USB device is unplugged.
© Sunplus Innovation Technology Inc.
Proprietary & Confidential
12
Jan, 25, 2007
Version: 1.1

12 Page





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