pxb4219 Infineon Technologies Corporation, pxb4219 Datasheet - Page 29

• Manufacturer Part Number: pxb4219
• Description: Iwe8 Interworking Element For 8 E1/t1 Lines
• Manufacturer: Infineon Technologies Corporation

Table 2
Pin No.
V6
Y9
U7
W2, Y1,
W3, Y2,
W4
Data Sheet
Symbol
TXCLAV
TXCLK
TXENB
TXADR[4:0]
UTOPIA Interface (36 pins) (cont’d)
Input (I)
Output (O)
Slave: O
Master: I
PDA
I
Slave: I
Master: O
PUA
I
PUA
29
Function
UTOPIA Transmit Cell Available
Slave: TXCLAV is an active high signal
asserted by the PHY layer to indicate it can
accept data.
Master: TXCLAV is an active high signal
asserted by the ATM layer to indicate it can
accept data.
UTOPIA Transmit Clock
Data transfer/synchronization clock
provided by the ATM layer to the PHY layer
for synchronizing
UTOPIA Transmit Enable
Slave:
ATM layer during cycles when
TXDAT[0:7]
Master:
the PHY layer during cycles when
TXDAT[0:7]
UTOPIA Transmit Address Bus
Five bit wide true data driven from the ATM
to MPHY layer to poll and select the
appropriate MPHY device. TXADR4 is the
MSB.
Active low signal asserted by the
PXB4219 / PXB4220 / PXB4221
Active low signal asserted by
contains valid cell
contains valid cell
transfers on
Pin Descriptions
TXDAT[0:7]
data.
data.
2002-05-06
.