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ICD-U50/U60/U70
ICD-U50/U60/U70
• IC Block Diagrams
– MAIN Board –
IC501 TPS61020DRCR
IC703 RTC8564NB
EN
Anti-
Ringing
Backgate
Control
VOUT
Vmax
Control
Gate
Control
Regulator
Control Logic
Oscillaor
Temperature
Control
Vref=0.5V
Error
Amplifier
PGND
PGND
20pF
10k
Ω
GND
Low Battery
Comparator
Comparator
Vref=0.5V
GND
GND
1
2
VOUT
3
FB
4
LBO
5
GND
10 PGND
9
SW
8
PS
7
LBI
6
VBAT
10
1
2
3
4
5
6
7
8
9
20
19
18
17
16
15
14
13
12
10
OSC
32.768kkHz
CRYSTAL
POR
OUTPUT
CONTROL
Voltage Detector
Control 1
Control 2
Seconds
Minutes
Hours
Days
Weekdays
Month/Century
Years
Minutes Alarm
Hour Alarm
Day Alarm
Weekend Alarm
CLKOUT frequency
Timer Control
Timer
0F
DIVIDER
CONTROL
LOGIC
ADDRESS
REGISTER
I
2
C-BUS
INTERFACE
GND1
INT
GND2
NC1
SDA
SCL
CLKOUT
VDD
CLKOE
NC2
NC3
NC4
NC5
NC6
NC7
NC8
NC9
NC10
NC11
NC12
11
00
• IC Pin Function Description
MAIN BOARD IC701 DE53SN589AM8BLC (SYSTEM CONTROLLER)
MAIN BOARD IC701 DE53SN589AM8BLC (SYSTEM CONTROLLER)
Pin No.
Pin Name
I/O
Description
1
SPOUTP
O
Speaker output
2
BCLK
O
Not used (open)
3
TXMOD
O
Not used (open)
4
RSSI
I
Not used (connected to ground)
5
XIN
I
Clock input terminal (4.096MHz)
6
XOUT
O
Clock output terminal (4.096MHz)
7
VDD
—
DSP core power supply output terminal
8
VCCIN
—
DSP core power supply terminal
9
GND1
—
Ground terminal for digital circuit
10
USBP
I/O
USB data signal (+)
11
USBM
I/O
USB data signal (–)
12
VCC1
—
Power supply terminal for digital circuit
13
DCDCGND
—
LCD backlight LED drive ground
14
DCDCIN
I
LCD backlight LED drive power supply terminal
15
DCDCOUT
O
LCD backlight LED drive (Pull up)
16
RSTN
I/O
External reset signal input and output
17
BGPIO0
O
Chip enable signal output for NAND Flash Memory pull-up terminal
18
BGPIO3
O
Address latch enable signal output for NAND Flash Memory
19
BGPIO4
O
Command latch enable signal output for NAND Flash Memory
20
BGPIO5
O
Not used
21
BGPIO6
O
Chip enable signal output for NAND Flash Memory (Not used)
22
EGPIO14
I
Test mode start signal input (for factory use)
23
BGPIO1
O
[PLAY] LED drive control signal output
24
BGPIO2
O
[REC] LED drive control signal output
25
BGPIO11
I/O
Not used (open)
26
BGPIO12
O
Not used (open)
27
BGPIO13
O
Headphones mute control signal output
28
BGPIO15
O
Not used (open)
29
CGPIO3
I
USB connection detect signal input
30
GND2
—
Ground terminal for digital circuit
31
VCC2
—
Power supply terminal for digital circuit
32
EGPIO12
O
LCD controller chip select signal output
33
EGPIO13
O
LCD controller serial clock signal output
34
EGPIO11
O
LCD controller serial data signal output
35
BGPIO7
O
LCD controller address signal output
36
BGPIO8
O
External speaker mute control signal output (not used)
37
BGPIO9
O
External speaker shutdown control signal output (not used)
38
BGPIO10
I
NAND Flash Memory Ready/Busy signal input
39
DGPIO10
I/O
NAND Flash Memory CS1/CS2 select signal input (not used)
40
DGPIO9
O
USB connection detect signal input
41
DGPIO8
I
RTC interrupt input
42
DGPIO7
I/O
NAND Flash Memory data bus
43
DGPIO6
I/O
NAND Flash Memory data bus
44
DGPIO5
I/O
NAND Flash Memory data bus
45
DGPIO4
I/O
NAND Flash Memory data bus
46
DGPIO3
I/O
NAND Flash Memory data bus
47
DGPIO2
I/O
NAND Flash Memory data bus
Ver. 1.1
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