No. 5382-3/10

LC89210

Pin Assignment

Host Interface

The LC89210 is interfaced to the control processor through a 64-byte dual-port RAM that is shared by the LC89210 and

the host.

Note: * Open-drain output

Pin

Type

Function

SD0 to SD7

I/O

System data bus

SA0 to SA6

I

System address bus

SDS (SDR)

I

System data strobe

SR/W (SWR)

I

System read/write

SCS

I

System chip select

SDTACK

OD*

System bus data acknowledge

SINTR

OD*

System interrupt request

RESET

I

Reset. This is an active-low signal.

RING

I

Ring detect signal

INT/MOT

I

Intel/Motorola interface