Hardware
S1C62440/624A0/624C0/62480 TECHNICAL HARDWARE
EPSON
I-iii
CONTENTS
CHAPTER 7
OUTPUT PORTS (Rxx) ...................................................... I-63
7.1
Configuration of Output Ports ........................................ I-63
7.2
Mask Option .................................................................. I-64
7.3
Control of Output Ports .................................................. I-70
High impedance control .......................................... I-70
Control registers of output ports ............................. I-70
When DC output ..................................................... I-72
When special output ............................................... I-72
7.4
Programming Notes....................................................... I-74
CHAPTER 8
I/O PORTS (Pxx) ............................................................. I-75
8.1
Configuration of I/O Ports .............................................. I-75
8.2
Mask Option .................................................................. I-76
8.3
Control of I/O Ports ........................................................ I-77
I/O control register and input/output mode ............ I-77
Pull up resistor ....................................................... I-77
Control register of I/O ports .................................... I-78
8.4
Programming Notes....................................................... I-80
CHAPTER 9
LCD DRIVER .................................................................... I-81
9.1
Drive Duty ...................................................................... I-81
9.2
Mask Option .................................................................. I-84
9.3
Segment Data Memory.................................................. I-85
9.4
Control of LCD Driver .................................................... I-87
9.5
Programming Note ........................................................ I-89