WT6116 View Datasheet(PDF) - Weltrend Semiconductor

Part Name

Description

Manufacturer

WT6116

microcontroller for digital controlled monitor

Weltrend Semiconductor 

WT6132/WT6124/WT6116

Data Sheet Rev. 1.01

FUNCTIONAL DESCRIPTION

CPU

8-bit 6502 compatible CPU operates at 6MHz. Address bus is 16-bit and data bus is 8-bit.

The non-maskable interrupt (/NMI) of 6502 is modified to be maskable and is defined as INT0 with higher

priority. The interrupt request (/IRQ) of 6502 is defined as INT1 with lower priority.

Please refer the 6502 reference menu for more detail.

RAM

WT6132 and WT6124 have 512 bytes RAM. Address is located from $0080h to $00FFh and $0180h to

$02FFh.

WT6116 have 384 bytes RAM. Address is located from $0080h to $00FFh and $0180h to $027Fh.

ROM

For WT6132, ROM is located from $8000h to $FFFFh.

For WT6124, ROM is located from $A000h to $FFFFh.

For WT6116, ROM is located from $C000h to $FFFFh.

The following addresses are reserved for special purpose :

$FFFAh (low byte) and $FFFBh (high byte) : INT0 interrupt vector.

$FFFCh (low byte) and $FFFDh (high byte) : program reset interrupt vector.

$FFFEh (low byte) and $FFFFh (high byte) : INT1 interrupt vector.

$0000h

:

$003Fh

$0040h

:

$007Fh

$0080h

:

$00FFh

$0100h

:

$017Fh

$0180h

:

$02FFh

$0300h

:

$0FFFh

$1000h

:

$7FFFh

$8000h

:

:

:

$FFFFh

Registers

Reserved

128 bytes RAM

Reserved

384 bytes RAM

Reserved

Reserved

ROM

Weltrend Semiconductor, Inc.

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