ATJ2085 ETC, ATJ2085 Datasheet - Page 13

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

ATJ2085
Copyright © 2004 Actions Semiconductor Co., Ltd. All rights reserved.
GPIO
GPOA
GPIOB
GPIOC
GPIOG
VER 1.5
Function
0
1
2
0
1
2
4
5
6
0
1
2
0
When ICE is used, GPO_A[2~0] Pins are ICEDO, ICECK and ICEDI; Otherwise
GPO_A[2~0] is used for output function.
When choosing Keyboard function, GPIOB[2~0] Pins are KEYI[2~0], and
GPIOB[6~4] are KEYO[2~0]; when not choosing Keyboard function, as
GPIOB[6-4:2-0]；When keyboard function enables, while some Key in [2~0] is used
as GPIOB, the relative Key in should be masked.
GPIOG[0]
Only used as GPIOC
(Default)
[3~0]
F1
WWW.MP3JS.COM.CN
When I2C function enables, it is used as I2C_SCL. When as
IO, it is GPIO_C0, then I2C can not be enabled
simultaneously
When I2C function enables, it is used as I2C_SDA. When
external interrupt enables, it is SIRQ-; and when as IO, it is
GPIO_C,
simultaneously.
when as IO, it is GPIO_C2
Page 12
DATA SHEET
multiple
functions
(Function 2)
F2
can
not
8/18/2004
Actions
be
enabled