STP2003PQFP Sun Microelectronics, STP2003PQFP Datasheet - Page 4

• Manufacturer Part Number: STP2003PQFP
• Description: PCI I/O Controller
• Manufacturer: Sun Microelectronics

P
Pin naming conventions
• All pin names are in lower case, except power (VDD) and ground (VSS).
• Active low signals are denoted by an underscore and a letter ‘l’ —“_l”— following the name.
• Direction is input (I), output (O), tri-state output (T), bidirectional (B), and open drain (D).
• TABLE 1: describes the prefixes used to name signals.
4
INOUT
STP2003QFP
512KB
E$
D
Graphics
Tag
ESCRIPTION
TD (24+3+P)
D (128+16P)
DA(18+16BE)
TA (15:0)
RIC
PCIO
PCI I/O Controller
SPARC-1
Ultra
SDB
SF3a
SF3
UPA_D0(127:0+ECC)
Figure 2. Typical System Application
Clk
XB1
UPA_A1(63:0+ECC)
UPA_A0(35:0)
UPA_A1(35:0)
Memory Data (256+32ECC)
UPA Interface
U2P
Controller
System
Memory Address
PCI Interface A
PCI Interface B
UPA_Ctrl
Memory Control
Memory SIMMs
PCI Bus
PCI
Bus
Adaptor
Bus
PCIO
August 2001