IMS C011

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4

2

Pin designations

Signal names are prefixed by not if they are active low, otherwise they are active high.

Pinout details for various packages are given on page 24.

Pin

In/Out

Function

VDD, GND

Power supply and return

CapMinus

External capacitor for internal clock power supply

ClockIn

in

Input clock

Reset

in

System reset

SeparateIQ

in

Select mode and Mode 1 link speed

LinkIn

in

Serial data input channel

LinkOut

out

Serial data output channel

Table 2.1

Services and link

Pin

In/Out

Function

I0-7

in

Parallel input bus

IValid

in

Data on I0-7 is valid

IAck

out

Acknowledge I0-7 data received by other link

Q0-7

out

Parallel output bus

QValid

out

Data on Q0-7 is valid

QAck

in

Acknowledge from device: data Q0-7 was read

Table 2.2

Mode 1 parallel interface

Pin

In/Out

Function

D0-7

in/out

Bi-directional data bus

notCS

in

Chip select

RS0-1

in

Register select

RnotW

in

Read/write control signal

InputInt

out

Interrupt on link receive buffer full

OutputInt

out

Interrupt on link transmit buffer empty

LinkSpeed

in

Select link speed as 10 or 20 Mbits/sec

HoldToGND

Must be connected to GND

DoNotWire

Must not be wired

Table 2.3

Mode 2 parallel interface