AM4EC AM4EC Series Datasheet
|Total Page||7 Pages|
新竹市光復路㆓段 295 號 9 樓之 1 號
電話: 03-573 6660
傳真: 03-573 6661
Alpha Microelectronics Corp.
9F-1, 295, Sec. 2, Kuang Fu Rd., Hsinchu, Taiwan
Tel : +886-3-573 6660
Fax: +886-3-573 6661
1.0 General Description
The AM4EC 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).
(1) Single power supply can operate from 2.2~5.5V at 4MHz or 3.6~5.5V at 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 Voice Duration (sec) Voice Pointer (VPR) ROM Size (10-bit)
(4) Data Registers:
a). 128 x 4-bits data RAM (00-7Fh)
(4EC005x/4EC010x are 96 x 4-bits data RAM 00-5Fh)
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)
(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.
(10) Built-in 8-level DAC current output can be configured. (Mask option)
(11) Built-in IR Carrier Output: Port B can be configured as IR pin by 38k / 56kHz. (Mask option)
|Features||www.DataSheet4U.com AM4EC S eries DATA SHEET ㆓ 295 9 1 : 03- 573 6660 : 03-573 6661 www.ealpha.com.t w Alpha Microelectronics Corp. 9F-1, 2 95, Sec. 2, Kuang Fu Rd., Hsinchu, Taiw an Tel : +886-3-573 6660 Fax: +886-3-57 3 6661 www.ealpha.com.tw Rev 1.6 2004/7 /1 www.DataSheet4U.com AM4EC Series 1.0 General Description The AM4EC serie s are very low cost voice and melody sy nthesizer with 4-bits CPU. They have va rious features including 4-bits ALU, RO M, RAM, I/O ports, timers, clock genera tor, voice and melody synthesizer, and PWM (Direct drive) or D/A current outpu ts, etc. The audio synthesizer contains one voice-channel and two melody-chann els. Furthermore, they consist of 27 in structions in these devices. With CMOS technology and halt function can minimi ze power dissipation. Their architectur es are similar to RISC, with two stages of instruction pipeline. They allow al l instructions to be executed in a sing le cycle, except for program branches and data table read instruc.|
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