MFC2000 datasheet(24/426 Pages) ETC

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MFC2000 Multifunctional Peripheral Controller 2000

Hardware Description

3-4

Conexant

100723A

Table 3-1. Pin Description (4 of 6)

Pin Name

Pin No.

I/O

Input

Type

Output

Type

Pin Description

SLCTOUT

2XT3V

PIO Returned status to PC

2XT3V

PIO Returned status to PC

FAULTn

2XT3V

PIO Returned status to PC (active low)

PIOD[7:0]

D2,D1,C2,H4,H

3,H2,H1,G4

I/O

H5VT

2XT5VT

(Hysteresis) Driven by PC or MFC2000 and used

to send data or address depending on which mode

is used

TESTER_MODE

HD5VT

(Hysteresis) For test only, It must be ‘low’ for the

normal operation

ADCREFp

Positive reference voltage for the scan PADC

ADCREFn

Negative reference voltage for the scan PADC

POWER1

Voltage input for power-down detection circuit 1

POWER2

Voltage input for power-down detection circuit 2

ADGA

Scan PADC analog ground

ADVA

Scan PADC analog Power

ADGD

Scan PADC digital ground

SDAA_SPKR

V12

Analog telephone line monitoring output from SSD

ADCV

Scan PADC internal ground

SCIN

Analog scan input signal

SENIN[2:0]

V6,W6,Y6

Analog sensor inputs for TADC

TCK

HD5VT

(Hysteresis, Pull down) Test clock input for JTAG.

It is positive edge-triggered.

TMS

HU5VT

(Hysteresis, Pull up) Test mode select input for

JTAG. Selects the next state in the TAP state

machine.

TRSTn

HD5VT

(Hysteresis, Pull down) Suggestion by Lauterbach

for JTAG: connect this signal to RESETn in normal

mode and disconnect in debug mode.

TDI

HU5VT

(Hysteresis, Pull up) Test data input for JTAG.

Serial data input to the JTAG shift register.

TDO

1XT5VT

Test data output for JTAG. Serial data output from

the JTAG shift register.

TEST

HD5VT

(Hysteresis, Pull down) For test only, It must be

‘low’ for the normal operation.

SCANMOD

HD5VT

(Hysteresis, Pull down) For the scan test only, It

must be ‘low’ for normal operations.

P80_SEL

H3V

P80 DSP test and DFT scan mode select, This pin

is only used for the test mode.

PLLREF_XIN

Y15

OSC

Crystal input pin for PLL

PLLREF_XOUT

W15

OSC

Crystal output pin for PLL

PLLVDD

U15

+3.3V digital power for PLL

PLLVSS

U16

+3.3V digital ground for PLL

SDDATA[15:0]

N20,P17,P18,P

19,P20,R17,R1

8,R19,R20,T17,

T18,T19,T20,U1

7,U18,U19

I/O

5VT

2XT5VT

Countach (S)DRAM data bus (16 bits)

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