IDT79RC32332 IDT [Integrated Device Technology], IDT79RC32332 Datasheet - Page 27

• Manufacturer Part Number: IDT79RC32332
• Description: IDT Interprise Integrated Communications Processor
• Manufacturer: IDT [Integrated Device Technology]

IDT 79RC32355
ATM Interface, Utopia Mode
RXCLKP, TXCLKP
RXCLKP, TXCLKP
RXCLKP, TXCLKP
TXFULLN
TXDATA[7:0], TXSOC,
TXENBN, TXADDR[1:0]
RXDATA[7:0], RXEMP-
TYN, RXSOC
RXADDR[1:0], RXENBN
1.
2.
ATM Utopia clock (RXCLKP and TXCLKP) frequency must be equal to or less than 1/2 CLKP frequency.
All Utopia Mode pins are multiplexed on the ATM interface pins as described in Table 9.
Signal
1
1
1, 2
Thigh1,Tlow1
Thigh1,Tlow1
Trise1,Tfall1
Trise1,Tfall1
Trise1,Tfall1
Thigh,Tlow1
Symbol
Tperiod1
Tperiod1
Tperiod1
Thld2
Thld4
Tsu2
Tdo3
Tsu4
Tdo5
Reference
TXCLKP
TXCLKP
RXCLKP
RXCLKP
Edge
rising
rising
rising
rising
none
none
none
Table 8 ATM AC Timing Characteristics
133MHz
Min
16
12
—
—
—
—
—
—
8
2
2
4
3
2
3
27 of 47
Max
40
30
20
—
—
—
—
—
—
—
4
3
2
8
8
150MHz
Min
16
12
—
—
—
—
—
—
8
2
2
4
3
2
3
Max
40
30
20
—
—
—
—
—
—
—
4
3
2
8
8
180MHz
Min
16
12
—
—
—
—
—
—
8
2
2
4
3
2
3
Max
40
30
20
—
—
—
—
—
—
—
4
3
2
8
8
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
25 MHz Utopia
33 MHz Utopia
50 MHz Utopia
Conditions
Figure 14
Reference
May 25, 2004
Diagram
Timing