VLSI
Solution
y
VS2000 PRELIMINARY
VS2000
4. PACKAGES AND PIN DESCRIPTIONS
4.2
LQFP-48 Pin Descriptions
Pin Name
LQFP
Pin
Pin
Type
Function
XRESET
1
DI
Active low asynchronous reset, schmitt-trigger input
GPIO0 0
2
DIO
General-purpose IO Port 0, bit 0
GPIO0 1
3
DIO
General-purpose IO Port 0, bit 1
GPIO0 2
4
DIO
General-purpose IO Port 0, bit 2
GPIO0 3
5
DIO
General-purpose IO Port 0, bit 3
DGND0
6
DGND
Core & I/O ground
IOVDD1
7
IOPWR
I/O power supply
TEST
8
DI
Test mode input (active high), connect to DGND
GPIO0 4
9
DIO
General-purpose IO Port 0, bit 4
GPIO0 5
10
DIO
General-purpose IO Port 0, bit 5
GPIO0 6
11
DIO
General-purpose IO Port 0, bit 6
GPIO0 7
12
DIO
General-purpose IO Port 0, bit 7
GPIO0 8
13
DIO
General-purpose IO Port 0, bit 8
GPIO0 9
14
DIO
General-purpose IO Port 0, bit 9
GPIO0 10
15
DIO
General-purpose IO Port 0, bit 10
GPIO0 12
16
DIO
General-purpose IO Port 0, bit 12
GPIO0 13
17
DIO
General-purpose IO Port 0, bit 13
DGND1
18
DGND
Core & I/O ground
IOVDD2
19
IOPWR
I/O power supply
GPIO0 11
20
DIO
General-purpose IO Port 0, bit 11
GPIO0 14
21
DIO
General-purpose IO Port 0, bit 14
XCS / GPIO1 0
22
DIO
SPI XCS / General-Purpose I/O Port 1, bit 0
SCLK / GPIO1 1
23
DIO
SPI CLK / General-Purpose I/O Port 1, bit 1
SI / GPIO1 2
24
DIO
SPI MISO / General-Purpose I/O Port 1, bit 2
SO / GPIO1 3
25
DIO
SPI MOSI / General-Purpose I/O Port 1, bit 3
TX / GPIO1 4
26
DIO
UART TX / General-Purpose I/O Port 1, bit 4
RX / GPIO1 5
27
DIO
UART RX / General-Purpose I/O Port 1, bit 5
XTALI
28
AI
Crystal input
XTALO
29
AO
Crystal output
IOVDD
30
IOPWR
I/O power supply, Regulator output
DGND2
31
DGND
Core & I/O ground
CVDD
32
CPWR
Core power supply, Regulator output
VHIGH
33
PWR
Power supply, Regulator input
AVDD
34
APWR
Analog power supply, Regulator output
USBP
35
AIO
USB differential + in / out, controllable 1.5kΩ pull-up
USBN
36
AIO
USB differential - in / out
PWRBTN
37
AIO
Power button for Regulator startup (and Power Key)
AGND0
38
APWR
Analog ground
AVDD1
39
APWR
Analog power supply
RIGHT
40
AO
Right channel output
AGND1
41
APWR
Analog ground
AGND2
42
APWR
Analog ground
CBUF
43
AO
Common voltage buffer for headphones
AVDD2
44
APWR
Analog power supply
RCAP
45
AIO
Filtering capacitance for reference
AVDD3
46
APWR
Analog power supply
LEFT
47
AO
Left channel output
AGND3
48
APWR
Analog ground
Version 0.3,
2007-09-05
8
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