Texas Instruments PCI1520 manual Reference Schematics, U2A

SCPA033

13 Reference Schematics

The following schematics show the most basic implementation of the PCI1520 possible. These schematics provide minimum functionality. All interrupts are routed using IRQSER.

	NOTE: THESE ARE THE PCI TERMINALS. PLEASE REFER TO SECTION 4
3.3VCC	FOR INFORMATION ON WHICH TERMINALS NEED PULLUP RESISTORS.

VCCP

PAR

C10

C11

C12

SERR#

PERR#

.1uF

.1uF

.1uF

STOP#

DEVSEL#

TRDY#

IRDY#

FRAME#

C/BE#[3..0]

AD[31..0]

AD12

AD13

AD14

AD15

C/BE#1

C/BE#2

AD16

IDSEL

PCLK

REQ#

GNT#

PRST#

PME#

U2A

208

207

206

205

204

203

202

201

200

199

198

197

196

195

194

193

192

AD10

1

AD10

AD12

AD13

AD14

AD15

C/BE1#

PAR

SERR#

PERR#

STOP#

GND DEVSEL#

TRDY# IRDY# VCC FRAME#

C/BE2#

AD16

AD17

191

AD17

AD9

2

190

AD18

AD9

AD18

AD8

3

189

AD19

4

AD8

AD19

188

AD20

C/BE0#

AD20

AD7

5

187

AD21

AD7

AD21

6

186

AD22

AD6

GND

AD22

7

185

AD6

GND

AD5

8

184

AD23

AD4

9

AD5

AD23

183

AD4

IDSEL

AD3

10

182

AD2

11

AD3

PCLK

181

AD24

AD2

AD24

AD1

12

180

AD0

13

AD1

VCCP

179

AD26

AD0

AD26

C/BE#0

MFUNC6/CLKRUN#

178

AD27

AD27

152

177

SPKROUT#

RI OUT#/PME#

GRST#

AD28

153

176

LATCH

AD28

154

SUSPEND#

175

AD29

CLOCK

AD29

155

MFUNC0 MFUNC1

MFUNC2

MFUNC3

MFUNC4

MFUNC5

174

DATA

VCC

C/BE3#

PRST# GNT# REQ# AD31

R4

GND AD25

AD30

AD11

156

157

158

159

160

161

162

163

164

165

166

167

168

169

170

171

172

173

43K

PCI1520 (PCI)

R5

C/BE#3

AD25

AD31

AD30

AD11

43K

NOTE:

R4 PULL-DOWN ON CLOCK

REQUIRED WHEN USING

INTERNAL OSC

GRST#

									NOTE: GRST# IS A
									POWER-ON RESET. IT
									SHOULD BE ASSERTED AT
									POWER UP, WAIT AT
	R6	R7	R8	R9	R10	R11	R12	R13	LEAST 100US AFTER PCLK
3.3VCC	43K	43K	43K	43K	43K	43K	43K	43K	IS STABLE, THEN BE
									DEASSERTED FOR
									PROPER INITIALIZATION.

PCI12V							NOTE: IRQSER SHOULD BE
					PCI5V		ROUTED TO AN
							INTERRUPT CONTROLLER.
C13	C14		U3				IRQSER
10uF	.1uF	1			30	C15	C16
			5VIN	5VIN		10uF	.1uF
		2			29
			5VIN	NC
		3			28
			DATA	NC
		4			27
			CLOCK	NC
		5			26
			LATCH	NC
AVPP		6			25	BVPP
			NC	SHDN#
		7			24
			12VIN	12VIN
		8			23
			AVPP	BVPP
		9			22
			AVCC	BVCC
	C17	10			21	C18
			AVCC	BVCC
		11			20
			AVCC	BVCC
	.1uF	12			19	.1uF
			GND	NC
		13			18
			NC	OC#
		14			17
			RESET#	3.3VIN
		15			16
			3.3VIN	3.3VIN
			TPS2226A

AVCC

PCI3.3V BVCC

C19

C20 C21 C22

.1uF

10uF .1uF .1uF

Figure 4. Reference Schematics – Page 1

22 PCI1520 Implementation Guide