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EPVP6200 Datasheet(PDF) 29 Page - ELAN Microelectronics Corp

Part No. EPVP6200
Description  VFD Controller
Download  57 Pages
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Maker  EMC [ELAN Microelectronics Corp]
Homepage  http://www.emc.com.tw
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 29 page
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ePVP6200
VFD Controller
This specification is subject to change without further notice.
11.18.2004 (V1.53) 23 of 57
7.3.3 IOC 5 (PORT5 Switches)
a) Page 1
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
P57S
P56S
P55S
P54S
R/W-0
R/W-0
R/W-0
R/W-0
Bit 4 ~ Bit 7 (P54S~P57S) : Port5 I/O direction control register
0
set the relative I/O pin as output HV
1
set the relative I/O pin into high impedance
7.3.4 IOC 8
a) PAGE 1 (Clock Source and Prescaler for COUNTER1 and COUNTER2)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
CNT2S
C2_PSC2 C2_PSC1 C2_PSC0
CNT1S
C1_PSC2 C1_PSC1 C1_PSC0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
Bit 0 ~ Bit 2 (C1_PSC0 ~ C1_PSC2) : COUNTER1 prescaler ratio
C1_PSC0
C1_PSC2
C1_PSC1
COUNTER1
0
0
0
1:2
1
0
0
1:4
0
0
1
1:8
1
0
1
1:16
0
1
0
1:32
1
1
0
1:64
0
1
1
1:128
1
1
1
1:256
Bit 3 (CNT1S) : COUNTER1 clock source
0
16.384kHz
timing = ( 1 /16.384k) * prescaler * (256 – count vaule)
1
system clock
timing = ( 2 / system clock) * prescaler* (256 – count vaule)
Bit 4 ~ Bit 6 (C2_PSC0 ~ C2_PSC2) : COUNTER2 prescaler ratio
C2_PSC2
C2_PSC1
C2_PSC0
COUNTER2
0
0
0
1:2
0
0
1
1:4
0
1
0
1:8
0
1
1
1:16
1
0
0
1:32
1
0
1
1:64
1
1
0
1:128
1
1
1
1:256




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