PXF4333 Datasheet, PDF (27/361 Pages) Infineon Technologies AG – ABM 3G ATM Buf fer Manager

ABM-3G
PXF 4333 V1.1
Pin Descriptions
2.3
Pin Definitions and Functions
Table 2-1 lists and explains all pins/balls organized into functional groups. Table 2-1
uses the following naming conventions:
Ball No.
Symbol
Type
Function
Ball Number with respect to package outline (see Figure 2-1)
Signal Name
Type of pin/ball:
I
Input pin
I_PD
Input pin (Internal Pull-Down Transistor)
I^PU
Input pin (Internal Pull-Up Transistor)
O
Output pin (Push/Pull)
O (oD) Output pin (Open Drain)
O (tri) Output pin (TriState)
Functional pin/ball description
Note: The ABM-3G signal pins are not 5 V I/O tolerant. For further details refer to “DC
Characteristics” on Page 337.
Table 2-1 Ball Definitions and Functions
Ball Symbol
No.
Type Function
2.3.1
P24
N24
Common System Clock Supply (3 pins)
SYSCLK
I
System Clock
This clock signal feeds DPLL1 and DPLL2 and the
internal ABM-3G Core Clock, depending on signal
SYSCLKSEL.
SYSCLKSEL I_PD
Internal ABM-3G Core Clock Source Select:
’H’: Internal Core Clock is supplied by signal
SYSCLK
’L’: Internal Core Clock is supplied by DPLL1
Data Sheet
27
2001-12-17