ATJ2085 ETC, ATJ2085 Datasheet - Page 9

• 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.
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VER 1.5
GPIO_B2
GPIO_B4
GPIO_B5
GPIO_B6
GPO_A1
GPO_A2
GPO_A0
ICERST-
ICEEN-
LXVCC
KEYO0
KEYO1
KEYO2
ICEDO
ICECK
NGND
KEYI2
ICEDI
CE3-
CE2-
CE1-
GND
VDD
VCC
D7
D6
D5
D4
D3
D2
D1
D0
PWR
PWR
PWR
PWR
AO
BI
BI
BI
BI
BI
BI
BI
BI
BI
BI
BI
BI
O
O
O
O
O
O
O
O
O
O
I
I
I
I
I
WWW.MP3JS.COM.CN
1.9mA
1.9mA
1.9mA
1.9mA
3.5mA
3.5mA
3.5mA
Driver
Driver
Driver
Driver
Driver
Driver
Driver
SCU
SCU
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Page 8
DATA SHEET
H
H
H
H
H
H
Z
Z
Z
Z
Z
L
L
L
L
L
L
L
L
L
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NMOS ground
VCC DC-DC pin
Bit2 of General purpose I/O port B
Bit2 of key scan circuit input
8080 interface LCM chip enable
Nand Flash chip enable (optional)
Boot up Nand Flash chip enable (must be
connected to Nand Flash)
Digital power
Bit4 of General purpose I/O port B
Bit0 of key scan circuit output
Bit5 of General purpose I/O port B
Bit1 of key scan circuit output
Bit6 of General purpose I/O port B
Bit2 of key scan circuit output
Bit1 of General purpose output port A
Clock input to DSU for debug
Bit2 of General purpose output port A
Data output from DSU for debug
Bit0 of General purpose output port A
Data input to DSU for debug
DSU enable (active low)
DSU reset (active low)
Digital power
Ground
Bit7 of ext. memory data bus
Bit6 of ext. memory data bus
Bit5 of ext. memory data bus
Bit4 of ext. memory data bus
Bit3 of ext. memory data bus
Bit2 of ext. memory data bus
Bit1 of ext. memory data bus
Bit0 of ext. memory data bus
8/18/2004
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