GPCL A1/B1 Series

© Generalplus Technology Inc.

Proprietary & Confidential

7

Sep. 15, 2015

Version: 1.0

d. GPCL096A1 , GPCL096B1

0x0000

IO

0x0080

0x00FF

0x4_7FFF

Reserved

SRAM

User's Program & Data Area

0x0200

0x0017

Reserved

0x0600

Test Program

0x0180

SRAM (Mapping)

0x01FF

e. GPCL040A1 , GPCL040B1

0x0000

IO

0x0080

0x00FF

0x1_FFFF

Reserved

SRAM

User's Program & Data Area

0x0200

0x0017

Reserved

0x0600

Test Program

0x0180

SRAM (Mapping)

0x01FF

f. GPCL030A1 , GPCL030B1

0x0000

IO

0x0080

0x00FF

0x1_7FFF

Reserved

SRAM

User's Program & Data Area

0x0200

0x0017

Reserved

0x0600

Test Program

0x0180

SRAM (Mapping)

0x01FF

g. GPCL020A1, GPCL020B1

0x0000

IO

0x0080

0x00FF

0xFFFF

Reserved

SRAM

User's Program & Data Area

0x0200

0x0017

Reserved

0x0600

Test Program

0x0180

SRAM (Mapping)

0x01FF

h. GPCL010A1 , GPCL010B1

0x0000

IO

0x0080

0x00FF

0x7FFF

Reserved

SRAM

User's Program & Data Area

0x0200

0x0017

Reserved

0x0600

Test Program

0x0180

SRAM (Mapping)

0x01FF

7.5. I/O Port

There are 12 IOs (IOC3-0 and IOD7-0) in the GPCL A1/B1 series;

IOC3-0 is a nibble-controlled IO, but IOD7-0 is a bit-controlled IO.

They can be programmed as input (pure input or pull-low) or

output buffer.

A pull-low input IOD7-0 keeps a less impedance to

get better noise immunity.

While pressing the key (IOD7-0 to

VDD), a larger impedance is retained to save DC power.

IOD6

can be programmed as an external interrupt source.

IOD7 can

be programmed as an IR transmitter.