Specifications

DM562AP

V.90 Integrated Data/ Fax/Voice/Speakerphone

Modem Device Single Chip with Memory Built in

Final

DM6588A Pin Description-ISA Interface only

Pin No. Pin Name I/O Description

2-5,

9-12

UD0-UD3,

UD4-UD7

I/O

Data Bus Signal:

These signals are connected to the data bus of the PC (or Host) I/O.

They are used to transfer data between the PC and the DM6588A.

22-24 UA0-UA2 I

System Address:

These signals are connected to the bus of PC (or Host) I/O. They are used to

select the DM6588A offset UART I/O address.

29 /IOWB I

I/O Write:

An active low input signal used to write data to the DM6588A.

30 /IORB I

I/O Read:

An active low input signal used to read data from the DM6588A.

31 /CSN I

Address Enable:

This is an active low signal to enable the system address for DM6588A.

36 /RST I

Reset:

An active low signal used to reset the DM6588A.

78 IRQ O

Interrupt Request:

The active pin will go high when an interrupt request is generated from the

DM6588A.

Version: DM562AP-DS-F03

Nov. 09, 2007