ePVP6800
VFD Controller
B) PAGE 2 (Counter3 Data Register)
Bit 7
CN37
R/W-0
Bit 6
CN36
R/W-0
Bit 5
CN35
R/W-0
Bit 4
CN34
R/W-0
Bit 3
CN33
R/W-0
Bit 2
CN32
R/W-0
Bit 1
CN31
R/W-0
Bit 0
CN30
R/W-0
Bit 0 ~ Bit 7 (CN30 ~ CN37) : Counter3's buffer that you can read and write.
Counter3 is an 8-bit up-counter with 8-bit prescaler that allows you to
use RA PAGE2 to preset and read the counter (write ꢂpreset). After
an interruption, it will reload the preset value.
7.2.12 RB (PORT9 Switches)
a) PAGE 1 (PORT9, Pull High)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
PH93
R/W-0
Bit 2
PH92
R/W-0
Bit 1
PH91
R/W-0
Bit 0
PH90
R/W-0
-
-
-
-
-
-
-
-
Bit 0 ~ Bit 3 (PH90 ~ PH93) : PORT9 Bit0 ~ Bit3 pull high control register
0 ꢂdisable pull high function.
1 ꢂenable pull high function
b) PAGE 2 (Counter4 Data Register)
Bit 7
CN47
R/W-0
Bit 6
CN46
R/W-0
Bit 5
CN45
R/W-0
Bit 4
CN44
R/W-0
Bit 3
CN43
R/W-0
Bit 2
CN42
R/W-0
Bit 1
CN41
R/W-0
Bit 0
CN40
R/W-0
Bit 0 ~ Bit 7 (CN40 ~ CN47) : Counter4 buffer that you can read and write.
Counter 4 is an 8-bit up-counter with 8-bit prescaler that allows you to
use RB PAGE2 to preset and read the counter.(write ꢂpreset). After
an interruption, it will reload the preset value.
This specification is subject to change without further notice.
11.28.2004 (V123) 15 of 47
ELAN [ ELAN MICROELECTRONICS CORP ]
