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SCPA033
22 PCI1520 Implementation Guide
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.
Figure 4. Reference Schematics – Page 1
C/BE#2
R13
43K
R10
43K
R11
43K
AD23
AD7
PME#
AD19
AD10
NOTE:
R4 PULL-DOWNON CLOCK
REQUIRED WHEN USING
INTERNALOSC
NOTE: GRST# IS A
POWER-ON RESET. IT
SHOULD BE ASSERTED AT
POWER UP, WAIT AT
LEAST 100US AFTER PCLK
IS STABLE, THEN BE
DEASSERTED FOR
PROPER INITIALIZATION.
PCI12V
R5
43K
3.3VCC
AD30
C18
.1uF
VCCP
C11
.1uF
AD29
C/BE#3
AD22
DEVSEL#
FRAME#
AD15
R9
43K
R4
43K
C22
.1uF
R6
43K
SERR#
R7
43K
AD24
C14
.1uF
AD[31..0]
AVCC
IDSEL
C15
10uF
R8
43K
AD28
C/BE#1
PERR#
STOP#
C12
.1uF
C17
.1uF
PRST#
C/BE#[3..0]
AD13
GNT#
C19
.1uF
BVPP
AD4
AD27
C20
10uF
AD9
AD11
NOTE: THESE ARE THE PCI TERMINALS. PLEASE REFER TO SECTION 4
FOR INFORMATION ON WHICH TERMINALS NEED PULLUP RESISTORS.
REQ#
PCI5V
C/BE#0
AD20
AD18
BVCC
AD0
AD6
AD1
R12
43K
3.3VCC
AVPP
AD12
U3
TPS2226A
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15 16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
5VIN
5VIN
DATA
CLOCK
LATCH
NC
12VIN
AVPP
AVCC
AVCC
AVCC
GND
NC
RESET#
3.3VIN 3.3VIN
3.3VIN
OC#
NC
BVCC
BVCC
BVCC
BVPP
12VIN
SHDN#
NC
NC
NC
NC
5VIN
AD25
AD21
GRST#
AD3
AD8
AD31
U2A
PCI1520 (PCI)
1
2
3
4
5
6
7
8
9
10
11
12
13
208
207
206
205
204
203
202
201
200
199
198
197
196
195
194
193
192
191
190
189
188
187
186
185
184
183
182
181
180
179
178
177
176
175
174
173
172
171
170
169
168
167
166
165
164
163
162
161
160
159
158
157
156
155
154
153
152
AD10
AD9
AD8
C/BE0#
AD7
GND
AD6
AD5
AD4
AD3
AD2
AD1
AD0
AD12
AD13
AD14
AD15
C/BE1#
PAR
SERR#
PERR#
STOP#
GND
DEVSEL#
TRDY#
IRDY#
VCC
FRAME#
C/BE2#
AD16
AD17
AD18
AD19
AD20
AD21
AD22
GND
AD23
IDSEL
PCLK
AD24
VCCP
AD26
AD27
GRST#
AD28
AD29
VCC
AD11
AD30
AD31
REQ#
GNT#
PRST#
AD25
GND
RI_OUT#/PME#
C/BE3#
MFUNC6/CLKRUN#
MFUNC5
MFUNC4
MFUNC3
MFUNC2
SUSPEND#
MFUNC1
MFUNC0
DATA
CLOCK
LATCH
SPKROUT#
AD14
C13
10uF
NOTE: IRQSER SHOULD BE
ROUTEDTO AN
INTERRUPTCONTROLLER.
AD2
AD17
PCLK
C16
.1uF
PCI3.3V
AD16
IRQSER
IRDY#
TRDY#
C21
.1uF
C10
.1uF
PAR
AD5
AD26