IMP16C552-CJ68 IMP Inc, IMP16C552-CJ68 Datasheet - Page 30

• Manufacturer Part Number: IMP16C552-CJ68
• Description: Dual Universal Asynchronous Receiver/Transmitter (UART) with 16-BYTE FIFO & Parallel Printer Port
• Manufacturer: IMP Inc

30
Note 1
Reading of last byte from FIFO
(first byte that reaches
SAMPLE CLK
trigger level)
(read RBR)
FIGURE 12 – Receiver DMA Timing (FCR0=0 or FCR0=1 and FCR3=0)
(first byte)
SAMPLE CLK
IOR*
RXRDY*
(read RBR)
SIN0
SIN0
RXRDY*
FIGURE 13 – Receiver DMA Timing (FCR0=1 and FCR3=1)
IOR*
408-432-9100/www.impweb.com
PARITY
PARITY
Mode 0
Mode 1
STOP
STOP
t
SINT
t
IMP16C552
SINT
IMP16C552
ACTIVE
Note1
Note1
ACTIVE
t
RINT
t
RINT
© 2002 IMP, Inc.