ACU7503 Datasheet, PDF (14/28 Pages) List of Unclassifed Manufacturers – second generation highly-integrated digital music system solutions

ACU7503PRODUCT DATASHEET
3.5.3 External Power Supply Controller
The Battery Charger uses the external power supply from either USB VBUS or adapter.
3.6 DMA Controller
The ACU7503 series SOC has four DMA Controllers. DMA1/2 can transfer data between
memory and memory, memory and I/O, I/O and I/O. DMA5 is for flash controller, DMA6 is
USB DMA. Both DMA1 and DMA2 can be configured to have higher priority over the other.
The DMA Controller Arbiter is embedded to prevent any conflict of transferring from
happening, and let the DMA Controller with higher priority to start first and end first.
3.7 GPIO and Multifunction Configuration
There are two Multi Function Modes that can be configured, including GPIO mode, KEY
mode. In different mode, GPIO pins can be configured to have alternated functions.
PIN No PIN NAME
F1(GPIO)
F2(Key)
42
GPO_A0
GPO_A0/ICEDI
GPO_A0/ICEDI
40
GPO_A1
GPO_A1/ICECK
GPO_A1/ICECK
41
GPO_A2
GPO_A2/ICEDO
GPO_A2/ICEDO
28
GPIO_B0
KEYI0/GPIO_B0/CE3-
KEYI0/GPIO_B0/CE3-
29
GPIO_B2
KEYI2/GPIO_B2/CE4-
KEYI2/GPIO_B2/
45
GPIO_B4
KEYO0/GPIO_B4
KEYO0/GPIO_B4
46
GPIO_B5
KEYO1/GPIO_B5
KEYO1/GPIO_B5/
63
GPIO_C0
GPIO_C0
GPIO_C0
62
GPIO_C1
GPIO_C1
GPIO_C1/SIRQ-
37
GPIO_G0
GPIO_G0
GPIO_G0
3.8 USB 2.0 SIE
The Actions USB2.0 device controller is fully compliant with the Universal Serial Bus 2.0
specification. This high performance USB2.0 device controller integrates USB transceiver,
SIE, and provides multifarious interfaces for generic MCU, RAM, ROM and DMA controller. So
it is suitable for a variety of peripherals, such as: scanners, printers, mass storage devices,
and digital cameras. It is designed to be a cost-effective USB total solution.
Copyright © Actions Semiconductor Co., Ltd. 2006. All rights reserved.
Ver 1.3
Page 14
2007-1-22