Information

Texas Instruments Signal Chain Guide 2013 | 111
Interface
Consumer/Computing – 1394
Get more information: www.ti.com/product/TSB81BA3E
IEEE P1394b Three-Port Cable Transceiver Arbiter
TSB81BA3E
The TSB81BA3E provides the digital and analog transceiver functions needed to imple-
ment a three-port node in a cable-based IEEE 1394 network.The transceivers include
cir
cuitry to monitor the line conditions as needed for determining connection status, for
initialization and arbitration, and for packet reception and transmission.
Key Features
• FullysupportsprovisionsofIEEE
P1394b revision 1.33+ at 1Gb
signaling rates
• FullysupportsprovisionsofIEEE
1394a-2000 and 1394-1995 standard
for high-performance serial bus
• FullyinteroperablewithFireWire
®
,
i.LINK
®
, and SB1394
™
,
implementation of IEEE Std 1394
•
Providesthreefullybackward- 
compatible, (1394a-2000 fully
compliant) bilingual P1394b cable
ports at up to 800 Mbps
• Providesthree1394a-2000fully
compliant cable ports at 100/200/400
Mbps
• Power-downfeaturestoconserve
energy in battery-powered applications
• Low-powersleepmode
• Datainterfacetolink-layercontroller
pin-selectable from 1394a-2000 mode
(2/4/8 parallel bits at 49.152 MHz) or
1394b mode (8 parallel bits at
98.304 MHz)
Applications
• Storagedevices
• Consumerelectronics
• DesktopPCs
TSB81BA3E functional block diagram
TPA2+
TPA2−
TPB2+
TPB2−
TPA1+
TPA1−
TPB1+
TPB1−
TPB0+
TPB0−
Bilingual
Cable Port 0
Bilingual
Cable Port 1
Bilingual
Cable Port 2
CPS
LPS
CNA
PINT
LCLK
LREQ
CTL0
CTL1
D0
D5
D1
D2
D3
D4
D6
D7
RESETz
LKON/DS2
PD
BMODE
Received Data
Decoder/Retimer
Arbitration
and Control
State Machine
Logic
Transmit
Data
Encoder
Crystal Oscillator,
PLL System,
and Transmit
Clock Generator
PCLK
PC0
PC1
PC2
SE
SM
DS0
DS1
TESTM
TESTW
Voltage
Regulator
XI
TPA0+
TPA0−
Bias Voltage
and
Current
Generator
R0
R1
TPBIAS0
TPBIAS1
TPBIAS2
Link
Interface
I/O