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10 GB Communication

Version

1.0

& Control Card Instruction Manual

4.7 Parallel Data Interface

The 10 GB C&C Card has a two-way parallel port, through which data

can directly be loaded from IP to the slave device or from the slave device to

IP. Several slave devices can be connected to the bus. The Parallel Data

Interface (PDI) has an 8-bit bi-directional data bus (DATA 0-7) and control

signals: Clock (CLK), Transfer Enable (TE), Read/Write# (RW), IRQ#, WAIT#

and RESET#.

Description

Direction

IO Standard

Impedance

GND

DATA 0

directional

3.3 V CMOS

2.2

kΩ pull

DATA 1

directional

3.3 V CMOS

2.2

kΩ pull

DATA 2

directional

3.3 V CMOS

2.2

kΩ pull

DATA 3

directional

3.3 V CMOS

2.2

kΩ pull

VDD (3.3 V)

IRQ

Input

3.3 V CMOS

2.2

kΩ pull

DATA 4

directional

3.3 V CMOS

2.2

kΩ pull

DATA 5

directional

3.3 V CMOS

2.2

kΩ pull

DATA 6

directional

3.3 V CMOS

2.2

kΩ pull

DATA 7

directional

3.3 V CMOS

2.2

kΩ pull

WAIT

Input

3.3 V CMOS

2.2

kΩ pull

RESET

Output

3.3 V CMOS

2.2

kΩ pull

down

Output

3.3 V CMOS

Output

3.3 V CMOS

CLK

Output

3.3

V CMOS

27 Ω

serial

PDI data rate: 125 kB/s

A Read or a Write operation on the Parallel Data Interface can be performed

using PDIREAD or PDIWRITE instructions. (Details about the PDI can be

found in the GEC Instruction Manual Section 4.7)

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