PC87307VUL National Semiconductor, PC87307VUL Datasheet - Page 198

• Manufacturer Part Number: PC87307VUL
• Description: PC87307/PC97307 Plug and Play Compatible and PC97 Compliant SuperI/O
• Manufacturer: National Semiconductor

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Note:
Note:
SIN
Sample Clock
Trigger
Level
Interrupt
LSI
Interrupt
RD
(RD LSR)
RD
(RD RBR)
SIN
Sample Clock
Time-Out or
Trigger Level
Interrupt
LSI Interrupt
RD
(RD LSR)
RD
(RD RBR)
If SCR0 = 1, then t
If SCR0 = 1, then t
SINT
SINT
= 3 RCLKs. For a time-out interrupt, t
= 3 RCLKs. For a time-out interrupt, t
Read From FIFO
Previous Byte
Data (5-8)
Active
FIGURE 13-9. FIFO Mode Receiver Timing
FIGURE 13-10. Time-Out Receiver Timing
Stop
Note
t
SINT
Device Description
Stop
t
SINT
Top Byte of FIFO
198
Active
Note
SINT
SINT
t
SINT
t
RINT
= 8 RCLKs
= 8 RCLKs.
t
Active
RINT
t
RAI3
Active
t
Active
RAI2
(FIFO at
or above
Trigger
Level)
(FIFO
Below
Trigger
Level)
(FIFO at
or above
Trigger
Level)
(FIFO
Below
Trigger
Level)