Data Sheet, Rev. 1
October 2002
FW802C Low-Power PHY IEEE
1394A-2000
Two-Cable Transceiver/Arbiter Device
Distinguishing Features
I
Compliant with IEEEStandard 1394a-2000, IEEE
Standard for a High Performance Serial Bus
Amendment 1.
I
Low-power consumption during powerdown or
microlow-power sleep mode.
I
Supports extended BIAS_HANDSHAKE time for
enhanced interoperability with camcorders.
I
While unpowered and connected to the bus, the
device will not drive TPBIAS on a connected port
even if receiving incoming bias voltage on that port.
I
Does not require external filter capacitors for PLL.
I
Does not require a separate 5 V supply for 5 V link
controller interoperability.
I
Interoperable across 1394
cable with 1394physi-
cal layers (PHY) using 5 V supplies.
I
Interoperable with 1394link-layer controllers using
5 V supplies.
I
1394a-2000 compliant common-mode noise filter
on incoming TPBIAS.
I
Powerdown features to conserve energy in battery-
powered applications include:
— Device powerdown pin.
— Link interface disable using LPS.
— Inactive ports powerdown.
— Automatic microlow-power sleep mode during
suspend.
I
Interface to link-layer controller supports Annex J
electrical isolation as well as bus-keeper isolation.
Features
I
Provides two compliant cable ports at 100 Mbits/s,
200 Mbits/s, and 400 Mbits/s.
I
Supports OHCI requirements.
I
Supports arbitrated short bus reset to improve
utilization of the bus.
I
Supports ack-accelerated arbitration and fly-by con-
catenation.
I
Supports connection debounce.
I
Supports multispeed packet concatenation.
I
Supports PHY pinging and remote PHY access
packets.
I
Supports full suspend/resume.
I
Supports PHY-link interface initialization and reset.
I
Supports
1394
a-2000 register set.
I
Supports LPS/link-on as a part of PHY-link inter-
face.
I
Supports provisions of
IEEE
1394
-1995
Standard
for a High Performance Serial Bus
.
I
Fully interoperable with
FireWire
implementation
of IEEE1394-1995.
I
Reports cable power fail interrupt when voltage at
CPS pin falls below 7.5 V.
I
Separate cable bias and driver termination voltage
supply for each port.
I
Meets Intel
Mobile Power Guideline 2000
Other Features
I
48-pin TQFP package.
I
Single 3.3 V supply operation.
I
Data interface to link-layer controller provided
through 2/4/8 parallel lines at 50 Mbits/s.
I
25 MHz crystal oscillator and PLL provide transmit/
receive data at 100 Mbits/s, 200 Mbits/s, and
400 Mbits/s, and link-layer controller clock at
50 MHz.
I
Node power-class information signaling for system
power management.
I
Multiple separate package signals provided for ana-
log and digital supplies and grounds.