SAA7240 Ver la hoja de datos (PDF) - Philips Electronics

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componentes Descripción

Fabricante

SAA7240

MPEG-2 Transport RISC processor

Philips Electronics 

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SYMBOL

NFAULT/A22

DIR1284

PWM interface

PWM0

System interface

RESETN

PIN

207

208

165

1

XTAL1

153

XTAL2

152

JTAG and test interface

TDO

178

TDI

179

TMS

180

TRST

181

TCK

184

EJTAG interface

DSU_CLK

185

PCST[0:2]

186 to 189

TYPE

DESCRIPTION

I/O host to peripheral control line or address line

O direction control of the external buffers

BUFFER TYPE

RESET

STATE

bidirectional; CMOS input;

Z

3-state output; 2 mA output drive

2 mA output drive

LOW

O PWM output for VCXO control

open-drain; 8 mA output drive LOW

I/O general system reset; active LOW; the pad is asserted bidirectional; CMOS input;

LOW (if enabled) when the internal watch dog time-out is 4 mA output drive open drain;

detected

I 13.5 MHz crystal input

oscillator input

I/O 13.5 MHz crystal output or external clock input

oscillator output

LOW

T

T

O test data output/target PC output

I test data input/debug interrupt

I test mode select

I test reset

I test clock

2 mA output drive

Z

CMOS input

Z

CMOS input

Z

CMOS input

Z

CMOS input

Z

O DSU clock is equivalent to the processor clock; used to 2 mA output drive

Z

capture address and data from pin TDO when PC trace

mode is on; is 3-stated when bit 0 or 15 of the

JTAG_Control_Register is LOW or logic 0

O CPU status (debug mode, pipeline stall and occurrence 2 mA output drive

Z

of exception)

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