ATJ2085 ETC, ATJ2085 Datasheet - Page 12

• Manufacturer Part Number: ATJ2085
• Description: Atj2085 is a Single-chip for Flash-based Digital Music Player
• Manufacturer: ETC

ATJ2085
ATJ2085 has GPOA, GPIOB, GPIOC, and GPIOG. They have different functions in different modes.
Copyright © 2004 Actions Semiconductor Co., Ltd. All rights reserved.
4.4 DMA Controller
4.5 General Purpose IO Ports
4.3 DSP Core
4.2 MCU Core
VER 1.5
ATJ2085 integrates 8-bit MCU with on-chip ICE support. Instruction set is compatible with Z80.
Process capability is controlled by software Up to 60 MHz.
ATJ2085 includes 116 Kbytes of on-chip SRAM and 29Kbytes on-chip ROM. See the following
flag for on chip memory mapping.
24-bit Harvard architecture DSP with on-chip ICE support is built in. It works with a memory word
length of 24 bits. ATJ2085 has 16KB*24bit Program Memory (PM) and (16KB-256)*24bit Data
Memory (DM). Memory-Mapped Register includes DAC interface. Process capability is controlled
by software Up to 72 MIPS.
ATJ2085 supports 3 kinds of DMA channels. DMA1/2 support Data exchange in Memory or IO.
The last DMA is USB DMA.
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Page 11
DATA SHEET
8/18/2004
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