参数资料
型号: S5933QE
厂商: APPLIEDMICRO INC
元件分类: 总线控制器
英文描述: PCI BUS CONTROLLER, PQFP160
封装: PLASTIC, QFP-160
文件页数: 144/176页
文件大小: 823K
代理商: S5933QE
3-15
SIGNAL DESCRIPTIONS
S5933
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.
in
Input is a standard input-only signal.
out
Totem Pole Output is a standard active driver.
t/s
Tri-State is a bidirectional, tristate input/output pin.
s/t/s
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 driving 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.
o/d
Open Drain allows multiple devices to share as a wire-OR.
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 1. S5933 Signal Pins
PCLK
INTA#
RST#
AD[31:0]
C/BE[3:0]#
REQ#
GNT#
FRAME#
DEVSEL#
IRDY#
TRDY#
IDSEL
STOP#
LOCK#
PAR#
PERR#
SERR#
MODE
FLT#
SNV
BPCLK
IRQ#
SYSRST
DQ[31:0]
SELECT#
ADR[6:1]
BE[3:0]#
RD#
WR#
PTATN#
PTBURST#
PTNUM[1:0]#
PTBE[3:0]#
PTADR#
PTWR
PTRDY#
RDFIFO#
WRFIFO#
RDEMPTY
WRFULL
EA[15:0]
EQ[7:0]
EWR#/SDA
ERD#/SCL
Add-On Bus
Control
S5933
Register
Access
Pass-Thru
Control/
Access
Serial
Config/BIOS Opt.
Direct
FIFO
Access
Byte Wide
Config/BIOS Opt.
PCI
2.1
Local
Bus
S5933
Control
S5933
Add-On Data Bus
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