VIA Technologies Apollo Pro133A Design Manual page 127

1
A
JFREQ1
1
3
5
7
VCC3
-CRESET
B
BSEL0
C
JA
* Auto mode:
Remove the BSEL0 and BSEL1 jumper,
install JA jumper.
D
For jumper-less circuit
1
2
VCC2_5
RN31
10K 8P4R
2 RATIO0
4 RATIO1
6 RATIO2
8 RATIO3
-A20M_
-IGNNE_
INTR_
NMI_
R298
10K
U18A
1 2
F04
R299
1K
R324
2K
R352
10K
C176
10u
2
U11
2 18
A0 Y0
4 16
A1 Y1
6 14
A2 Y2
8 12
A3 Y3
11 9
A4 Y4
13 7
A5 Y5
15 5
A6 Y6
17 3
A7 Y7
VCC2_5
1
OE0
19 20
OE1 V
LV244A
U21
3 2 RATIO0
SD0 D1 Q1
4 5 RATIO1
SD1 D2 Q2
7 6 RATIO2
SD2 D3 Q3
8 9 RATIO3
SD3 D4 Q4
13 12
D5 Q5
14 15
D6 Q6
17 16
D7 Q7
18 19
D8 Q8
11
GPIOD CLK
1
CLR
74F273
* OPTION
D10
1N4148
RST_SW
4 2
U22
NC7SZ125
C178
47u
3
-A20M
-IGNNE
INTR
NMI
Fraction
/Ratio JFREQ1
2 1-2,3-4,5-6,7-8
3 1-2,5-6,7-8
4 3-4,5-6,7-8
5 5-6,7-8
5/2 1-2,3-4,7-8
7/2 1-2,7-8
9/2 3-4,7-8
11/2 7-8
-SERR
C177
47u
VIA TECHNOLOGIES, INC.
Title
Size
C
Date:
3
4
USB2,3 / FREQ. RATIO
Document Number Rev
VT5228C (Preliminary)
Wednesday, November 24, 1999 Sheet 7 of 20
4
A
B
C
D
0.1