APExx12 Series
1.0 General Description
The APExx12 series are very low cost voice and melody synthesizer with 4-bits CPU. They have various
features including 4-bits ALU, ROM, RAM, I/O ports, timers, clock generator, voice and melody
synthesizer, and PWM (Direct drive) or D/A current outputs, etc. The audio synthesizer contains one
voice-channel and two melody-channels. Furthermore, they consist of 27 instructions in these devices.
With CMOS technology and halt function can minimize power dissipation. Their architectures are similar
to RISC, with two stages of instruction pipeline. They allow all instructions to be executed in a single
cycle, except for program branches and data table read instructions (which need two instruction cycles).
2.0 Features
(1) Single power supply can operate from 2.4V to 5.5V at 4MHz or 8MHz.
(2) Program ROM: 16k x 10 bits
(3) 1 set of 16-bits DPR can access up to 64k x 10 bits melody data memory space, and 1 set of 18-bits
VPR can access up to 256k x 10 bits voice data memory space.
Product
APE0612
APE1012
APE1512
APE2012
APE3112
APE4112
APE5212
APE6312
APE7312
APE8412
Voice Duration (sec) Voice Pointer (VPR) ROM Size (10-bit)
6
14-bits
15-bits
16-bits
16-bits
17-bits
17-bits
18-bits
18-bits
18-bits
18-bits
20k
32k
10
15
20
31
41
52
63
73
84
48k
64k
96k
128k
160k
192k
224k
256k
(4) Data Registers:
a). 128 x 4-bit data RAM (00-7Fh)
b). Unbanked special function registers (SFR) range: 00h-2Fh
(5) I/O Ports:
a). PRA: 4-bits I/O Port A (10h) can be programmed to input/output individually. (Register control)
b). PRB: 4-bits I/O Port B (13h) can be configured to input/output individually. (Mask option)
c). PRD: 4-bits I/O Port D (15h) can be programmed to input/output individually. (Register control)
(6) On-chip clock generator: Resistive Clock Drive (RM)
(7) Timer: 1-set Voice Interrupt (Timer0: a 9-bits auto-reload timer/counter).
(8) Stack: 2-level subroutine nesting.
(9) Built-in 4 Level Volume Control can be programmed.
1
Rev 1.3
2003/8/18
APLUS [ APLUS INTERGRATED CIRCUITS ]
