S5935QF Applied Micro Circuits Corporation, S5935QF Datasheet - Page 23

• Manufacturer Part Number: S5935QF
• Manufacturer: Applied Micro Circuits Corporation

Specifications of S5935QF

• Package Type: PQFP
• Rad Hardened: No
• Lead Free Status / Rohs Status: Not Compliant

S5935 – PCI Product
Signal Type Definition
The following signal type definitions [in, out, t/s, s/t/s and o/d] are taken from Revision 2.1 of the PCI local bus
specification.
Note that a # symbol at the end of a signal name denotes that the active state occurs when the signal is at a low voltage. When no # symbol is
present, the signal is active high.
Figure 7. S5935 Signal Pins
AMCC Confidential and Proprietary
s/t/s
out
o/d
t/s
in
Input is a standard input-only signal.
Totem Pole Output is a standard active driver.
Tri-State ® is a bidirectional, tristate input/output pin.
Sustained Tri-State is an active low tristate signal owned and driven by one and only one agent at a time. The agent
that drives an s/t/s pin low must drive it high for at least one clock before letting it float. A new agent cannot start driv-
ing a s/t/s signal any sooner than one clock after the previous owner tri-states it. A pullup is required to sustain the
inactive state until another agent drives it, and must be provided by the central source.
Open Drain allows multiple devices to share as a wire-OR.
Control
S5935
PCLK
INTA#
RST#
AD[31:0]
C/BE[3:0]#
REQ#
GNT#
FRAME#
DEVSEL#
IRDY#
TRDY#
IDSEL
STOP#
LOCK#
PAR#
PERR#
SERR#
MODE
RSVD
SNV
S5935
PTNUM[1:0]
PTBE[3:0]#
EWR#/SDA
PTBURST#
ERD#/SCL
RDEMPTY
SELECT#
WRFIFO#
ADR[6:2]
WRFULL
DQ[31:0]
RDFIFO#
BE[3:0]#
EA[15:0]
SYSRST
PTADR#
PTRDY#
PTATN#
EQ[7:0]
BPCLK
PTWR
IRQ#
WR#
RD#
Add-On Bus
Control
Add-On Data Bus
S5933
Register
Access
Pass-Thru
Control/
Access
Direct
FIFO
Access
Byte Wide
Config/BIOS Opt.
Serial
Config/BIOS Opt.
Revision 1.02 – June 27, 2006
Data Book
DS1527
23