cxd1944r Sony Electronics, cxd1944r Datasheet - Page 4

• Manufacturer Part Number: cxd1944r
• Description: Ieee1394 3-port 200mbps Cable Transceiver/arbiter
• Manufacturer: Sony Electronics

Pin Description
Pin No.
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
1
2
3
4
5
6
7
8
9
CMC/LKON
XRESET
SYSCLK
XSLOW
Symbol
LDSEL
TEST1
TEST0
TPB3–
TPB3+
V
LREQ
DVDD
DV
DV
DV
CTL0
CTL1
AV
AV
PWD
AV
AV
CNA
CAP
CPS
LPS
PC0
PC1
PC2
TIO
DD-IO
D0
D1
D2
D3
DD
DD
DD
SS
DD
SS
SS
Supply
Supply
Supply
Supply
Supply
Supply
Supply
Supply
Supply
I/O(A)
I/O(A)
OUT
I(A)
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
O
I
I
I
I
I
I
I
I
I
I
I
I
Reset input. Asserts at LOW. A power-on reset signal can be generated by
adding a 0.1µF capacitor.
LINK power supply status. LINK power supply is connected.
LINK request input.
IO power supply.
LINK delay select.
Digital circuit power supply.
Power down input.
Digital circuit ground.
System clock output; 49.152MHz clock to LINK.
Digital circuit power supply.
I/O of bidrectional control signals for LINK.
I/O of bidrectional control signals for LINK.
I/O of bidirectional data signals for LINK.
I/O of bidirectional data signals for LINK.
I/O of bidirectional data signals for LINK.
I/O of bidirectional data signals for LINK.
Connect to ground via 0.1µF capacitor when a 5V LINK is used.
Connect to V
selected.
When XSLOW = LOW, a device acts as a 100M PHY. Normally connected
to V
Digital power supply.
Test mode control. Normally connected to ground.
Test mode control. Normally connected to ground.
Cable power status input. Normally connected to cable power.
Analog circuit power supply.
Analog circuit power supply.
Analog circuit power ground.
Configuration Manager Capable input, LINK ON clock (6MHz) output.
When LPS = LOW and a LinkOn packet is received, the 6MHz clock
signal continues to be output. Connect to V
The configuration management function is indicated when connected to
V
Power Class input (LSB).
Power Class input.
Power Class input (MSB).
Cable Not Active output. This output is debounced.
Analog circuit power ground.
Port3, Cable Pair B–.
Port3, Cable Pair B+.
DD
DD
.
.
SS
or V
–4–
DD
. If then connected to V
Description
DD
DD
or V
, short reset mode is
SS
with a 10K
resister.
CXD1944R