cp3ub26 National Semiconductor Corporation, cp3ub26 Datasheet - Page 12

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cp3ub26

Manufacturer Part Number

cp3ub26

Description

Reprogrammable Connectivity Processor With Usb And Can Interfaces

Manufacturer

National Semiconductor Corporation

Datasheet

1.CP3UB26.pdf (270 pages)

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ADGND

X1CKO

X2CKO

RESET

ADVCC

IOGND

IOVCC

UGND

X1CKI

X2CKI

AGND

UVCC

Name

AVCC

ENV0

ENV1

ENV2

ADC0

ADC1

ADC2

ADC3

GND

TMS

TDO

VCC

TCK

RDY

SCL

SDA

TDI

D+

D-

Pins

10

11

1

1

1

1

1

1

1

1

1

1

1

1

1

6

6

1

1

1

1

1

1

1

1

1

1

1

1

1

1

Input

Output

Input

Output

Input

I/O

I/O

I/O

Input

Input

Input

Output

Output

Input

Input

Input

Input

Input

Input

Input

Input

I/O

I/O

I/O

I/O

Input

Input

I/O

I/O

I/O

I/O

I/O

12 MHz Oscillator Input

12 MHz Oscillator Output

32 kHz Oscillator Input

32 kHz Oscillator Output

Chip general reset

Special mode select input with

internal pull-up during reset

Special mode select input with

internal pull-up during reset

Special mode select input with

internal pull-up during reset

JTAG Test Mode Select

(with internal weak pull-up)

JTAG Test Clock Input

(with internal weak pull-up)

JTAG Test Data Input

(with internal weak pull-up)

JTAG Test Data Output

NEXUS Ready Output

2.5V Core Logic

Power Supply

Core Ground

2.5

I/O Ground

PLL Analog Power Supply

PLL Analog Ground

ADC Analog Power Supply

ADC Analog Ground

ACCESS.bus Clock

ACCESS.bus Serial Data

USB D- Upstream Port

USB D+ Upstream Port

3.3V USB Transceiver Supply

USB Transceiver Ground

ADC Input Channel 0

ADC Input Channel 1

ADC Input Channel 2

ADC Input Channel 3

–

3.3V I/O Power Supply

Table 3 CP3UB26 LQFP-144 Signal Descriptions

Primary Function

12

BBCLK

None

None

None

None

PLLCLK

CPUCLK

SLOWCLK

None

None

None

None

None

None

None

None

None

None

None

None

None

None

None

None

None

None

None

TSX+

TSY+

TSX-

TSY-

Alternate

Name

BB reference clock for the RF Interface

None

None

None

None

PLL Clock Output

CPU Clock Output

Slow Clock Output

None

None

None

None

None

None

None

None

None

None

None

None

None

None

None

None

None

None

None

Touchscreen X+ contact

Touchscreen Y+ contact

Touchscreen X- contact

Touchscreen Y- contact

Alternate Function

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