pc87317vul National Semiconductor Corporation, pc87317vul Datasheet - Page 246

• Manufacturer Part Number: pc87317vul
• Description: Pc87317vul/pc97317vul Superi/o Plug And Play Compatible With Acpi Compliant Controller/extender
• Manufacturer: National Semiconductor Corporation

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AEN
A15-0,
DACK
RD
WR
D7-0
PD7-0, ERR,
PE, SLCT, ACK,
BUSY, GPIO17-10
GPIO27-20, GPIO37-30
FDC IRQ
AEN
A15-0,
DACK
WR
RD
D7-0
SLIN, INIT, STB,
PD7-0, AFD
FDC IRQ
PME2,1
FIGURE 14-4. Microprocessor Write Timing
FIGURE 14-3. Microprocessor Read Timing
t
t
AR
AW
t
PS
t
RVD
Device Specifications
t
Valid
Valid
RD
t
WR
246
t
DS
Valid Data
Valid Data
Previous State
t
RA
t
t
WA
RDH
t
HZ
t
t
DH
RI
t
WI
RC
WC
t
t
RCU
WCU
t
WO
Valid
Valid
OR
OR