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EPVP6200 Datasheet(PDF) 36 Page - ELAN Microelectronics Corp

Part No. EPVP6200
Description  VFD Controller
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Maker  EMC [ELAN Microelectronics Corp]
Homepage  http://www.emc.com.tw
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 36 page
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ePVP6200
VFD Controller
30 of 57
11.18.2004 (V1.53)
This specification is subject to change without further notice.
The other registers’ (Bit 7 ~ Bit 0) default values are as follows.
Address
R Register
PAGE 0
R Register
PAGE 1
R Register
PAGE 2
R Register
PAGE 3
IOC Register
PAGE 0
IOC Register
PAGE 1
0x4
00xxxxxx
0x5
0000xxxx
xxxx0000
00000000
0x6
00000000
xxxxxxxx
0x7
00000000
00000000
xxxxxxxx
0x8
00000000
00000000
xxxxxxxx
00000000
0x9
00000000
xxxxxxxx
xxxxxxxx
11111111
00000000
0xA
00011xx0
xxxxxxxx
xxxxxxxx
00000000
0xB
00000000
00000000
xxxxxxxx
00000000
x0000000
0xC
1011xxxx
00000000
xxxxxxxx
1111xxxx
1111xxxx
0xD
xxxxx000
xxxxx000
0xE
X0000000
x000xxxx
0xF
00000000
00000000
7.7 Wake Up
The controller features two types of sleep mode for power saving:
7.7.1 SLEEP Mode, RA(6 ;7) = 0 + "SLEP" Instruction
Under this mode, the controller turns off all the CPU and crystal. However, other circuits with
power control like key tone control or PLL control (with register enabled), has to be turned off
through software.
7.7.2 IDLE mode, RA(6 ;7) = 1 + "SLEP" Instruction.
With this mode, the controller only turns the CPU off. The crystal remains running.
7.7.3 Wake-up from SLEEP Mode
1. WDT time out
2. External interrupt
3. /RESET pull low
Any of these cases will reset the controller and run the program from address zero. The
status is just like the power-on-reset condition. Be sure to enable circuit after cases 1 or 2
occurs.




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