IMP16C552-CJ68 IMP Inc, IMP16C552-CJ68 Datasheet - Page 3

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

3
FIGURE 2 - IMP16C552 Block Diagram
IOW*
CLK
MR*
CS1*
CS2*
D0-D7
IOR*
CS0*
A2
A1
A0
BUFFER
SELECT
CONTR
DATA
LOGIC
BUS
AND
OL
LPTOE*
SLCT*
BUSY*
ACK*
PE
RXRDY0*
ERR*
TXRDY0*
INT0
RXRDY1*
TXRDY1*
INT1
PARALLEL
CONTROL
408-432-9100/www.impweb.com
SELECT
LOGIC
PORT
AND
CONTROL
SELECT 2
LOGIC
CONTROL
UART 1
SELECT 1
UART 0
LOGIC
PARALLEL
RCVR BUFR
RCVR BUFR
PORT
XMIT HOLD
XMIT HOLD
REGISTER
RECEIVER
REGISTER
REGISTER
RECEIVER
REGISTER
XMIT FIFO
CONTROL
XMIT FIFO
CONTROL
MODEM
MODEM
FIFO
FIFO
AFD*
INIT2*
STB*
SLIN*
INIT*
IMP16C552
IMP16C552
RCVR SHIFT
XMIT SHIFT
REGISTER
REGISTER
RCVR SHIFT
XMIT SHIFT
REGISTER
REGISTER
SOUT0
SIN0
RTS0*
CTR0*
DTR0*
RLSD0*
RI0*
DSR0*
SOUT1
RTS1*
DTR1*
PD0-PD7
DSR1*
CTS1*
RLSD1*
SIN1
RI1*
© 2002 IMP, Inc.