EPVP6200 Datasheet, PDF (21/57 Pages) ELAN Microelectronics Corp – VFD Controller

ePVP6200
VFD Controller
7.2.10 R9 (PORT9 I/O Data, Data RAM Data Buffer) ,Counter2_HB Data
a) PAGE 0 (PORT9 I/O Data Register)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
P97
P96
P95
P94
P93
R/W
R/W
R/W
R/W
R/W
Bit 2
P92
R/W
Bit 1
P91
R/W
Bit 0
P90
R/W
Bit 0 ~ Bit 7 (P90 ~ P97) : 8-bit PORT9(0~7) I/O data register
You can use IOC register to define input or output each bit, and to
define the pull high condition.
Bit 0:
1. P90
2. LED0
3. IR Input
: can be defined as Input/Output
: can be defined as Output
: can be defined as Input and IR is enabled
(when IOCF Bit7 is set to 1)
Bit 1 ~ Bit4:
1. P91~P94 : can be defined as Input/Output
2. LED1~LED4 : can be defined as Output
3. INT1~INT4 : can be defined as Input
Bit 5 ~ Bit7:
1. P95~P97 : can be defined as Input/Output
2. LED5~LED7 : can be defined as Output
b) PAGE 1 (Data RAM Data Register)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
RAM_D7 RAM_D6 RAM_D5 RAM_D4 RAM_D3 RAM_D2 RAM_D1 RAM_D0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Bit 0 ~ Bit 7 (RAM_D0 ~ RAM_D7) : Data RAM’s data
c) PAGE 2 (Counter2 High Byte Data Register)
Bit 7
CN215
Bit 6
CN214
Bit 5
CN213
Bit 4
CN212
Bit 3
CN211
Bit 2
CN210
R/W
R/W
R/W
R/W
R/W
R/W
Bit 1
CN29
R/W
Bit 0
CN28
R/W
Bit 0 ~ Bit 7 (CN28 ~ CN215) : Counter2_HB's buffer that you can read and write.
Counter2 is a 16-bit up-counter with 8-bit prescaler that
allows you to use R9 PAGE2 to preset and read the counter
(write preset). After an interruption, it will reload the preset
value.
This specification is subject to change without further notice.
11.18.2004 (V1.53) 15 of 57