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HCD-GTX999
55
• IC Pin Function Description
USB MICOM BOARD IC2 D708E001BRFP266 (USB SYSTEM CONTROLLER)
Pin No.
Pin Name
I/O
Description
1
VSS
-
Ground terminal
2, 3
EM_A (_18),
EM_A (_13)
O
Address signal output to the
fl
ash memory
4
CD-PO
O
Reset signal output to the digital servo "L": reset
5
MCK
-
Not used
6
VSS
-
Ground terminal
7
EM_A (_19)
O
Address signal output to the
fl
ash memory
8
CVDD
-
Power supply terminal (+1.2V)
9
BCKI
I
Bit clock signal input from the data buffer
10
DVDD
-
Power supply terminal (+3.3V)
11
D_RESET
O
Reset signal output to the data buffer, A/D converter, D/A converter,
USB interface and USB 2.0 hub controller "L": reset
12
LRCKI
I
L/R sampling clock signal input from the data buffer
13
VSS
-
Ground terminal
14
XRESET
I
Reset signal input from the system controller "L": reset
15
VSS
-
Ground terminal
16
CVDD
-
Power supply terminal (+1.2V)
17
CLKIN
I
System clock (22.5792MHz) input terminal
18
VSS
-
Ground terminal
19
TMS
-
Not used
20
CVDD
-
Power supply terminal (+1.2V)
21
XTRST
-
Not used
22
OSCVSS
-
Ground terminal
23
OSCIN
-
Not used
24
OSCOUT
-
Not used
25
OSCVDD
-
Power supply terminal (+1.2V)
26
VSS
-
Ground terminal
27
PLLHV
-
Power supply terminal (+3.3V)
28
TDI
-
Not used
29
TDO
-
Not used
30
VSS
-
Ground terminal
31
DVDD
-
Power supply terminal (+3.3V)
32
EMU (0)
-
Not used
33
CVDD
-
Power supply terminal (+1.2V)
34
EMU (1)
-
Not used
35
TCK
-
Not used
-
Ground terminal
O
Column address strobe signal output to the SDRAM
O
Write enable signal output to the SDRAM,
fl
ash memory and USB interface
O
Write enable signal output to the SDRAM
-
Ground terminal
I/O
Two-way data bus with the SDRAM,
fl
ash memory and USB interface
-
Power supply terminal (+3.3V)
I/O
Two-way data bus with the SDRAM,
fl
ash memory and USB interface
-
Power supply terminal (+1.2V)
I/O
Two-way data bus with the SDRAM,
fl
ash memory and USB interface
-
Ground terminal
48, 49
EM_D (3), EM_D (2)
I/O
Two-way data bus with the SDRAM,
fl
ash memory and USB interface
50
DVDD
-
Power supply terminal (+3.3V)
51, 52
EM_D (1), EM_D (0)
I/O
Two-way data bus with the SDRAM,
fl
ash memory and USB interface
53
CVDD
-
Power supply terminal (+1.2V)
54
VSS
-
Ground terminal
55, 56
EM_D (15), EM_D (14)
I/O
Two-way data bus with the SDRAM,
fl
ash memory and USB interface
57
CVDD
-
Power supply terminal (+1.2V)
58, 59
EM_D (13), EM_D (12)
I/O
Two-way data bus with the SDRAM,
fl
ash memory and USB interface
60
DVDD
-
Power supply terminal (+3.3V)
61
EM_D (11)
I/O
Two-way data bus with the SDRAM,
fl
ash memory and USB interface
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0
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