
ePVP6200
VFD Controller
This specification is subject to change without further notice.
11.18.2004 (V1.53)
19 of 57
7.2.13 RC (PORTC I/O Data , Counter5 Data)
a) PAGE 0 I/O Data Buffer/Serial Signal
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
PC7
PC6
PC5
PC4
PC3
PC2
PC1
PC0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Bit 0 ~ Bit 3
:
1. PC0 ~ PC3 are defined as Input/Output
2. KEY1 ~ KEY4 are defined as Keyscan Input
Bit 4
:
1.
PC4 is defined as Input/Output
2. STB = Serial strobe signal
Bit 5
:
1. PC5 is defined as Input/Output
2. CLK = Serial clock signal
Bit 6
:
1. PC6 is defined as Input/Output
2. SDO = Serial data out
Bit 7
:
1. PC7 is defined as Input/Output
2. SDI = Serial data in
b) PAGE 1 (PORTC, Pull High)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
PHC7
PHC6
PHC5
PHC4
PHC3
PHC2
PHC1
PHC0
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 7 (PHC0 ~ PHC7)
:
PORTC Bit0 ~ Bit7 pull high control register
0
disable pull high function.
1
enable pull high function
d) PAGE 2 (Counter5 Data Register)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
CN57
CN56
CN55
CN54
CN53
CN52
CN51
CN50
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 7 (CN50 ~ CN57)
:
Counter5 buffer that you can read and write.
Counter5 is an 8-bit up-counter with 8-bit prescaler that allows
you to use RC PAGE2 to preset and read the counter (write
preset). After an interruption, it will reload the preset value.
7.2.14 RD (Interrupt Flag,)
a) PAGE 0 (Interrupt Flags Register)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
-
-
-
-
-
CNT5
CNT4
CNT3
-
-
-
-
-
R/W-0
R/W-0
R/W-0
NOTE:
"1" means interrupt request, "0" means non-interrupt
Bit 0 (CNT3)
:
Counter3 timer overflow interrupt flag. Set when counter3 timer overflows.
Bit 1 (CNT4)
:
Counter4 timer overflow interrupt flag. Set when counter4 timer overflows.
Bit 2 (CNT5)
:
Counter5 timer overflow interrupt flag. Set when counter5 timer overflows.