2.3 I/O Configuration Using The Jumper Pin Header
Page
Two three way jumper pin headers are provided to allow for simple configuration of the I/O on data and control bus
pins of the VDIP2. This is done by a combination of pulling up or pulling down the VNC1L’s ACBUS5 (pin 46) and
ACBUS6 (pin 47). The relevant portion of the VDIP2 module schematic is shown in figure 7, below.
Figure 2 - VDIP2 On-board jumper pin configuration.
VNC1L-1A
ACBUS5
ACBUS6
46
47
3V3
47k
47k
J3
1
2
3
J4
1
2
3
Table 2 - Port Selection Jumper Pins
ACBUS6
(VNC1L pin 47)
Pull-Up
Pull-Up
Pull-Down
Pull-Down
GND
ACBUS5
(VNC1L pin 46)
Pull-Up
Pull-Down
Pull-Up
Pull-Down
I/O Mode
Serial UART
SPI
Parallel FIFO
Serial UART
Table 3 - Data and control bus configuration options
Pin Name
No.
Pin
Name
on
PCB
AD0
AD1
AD2
AD3
AD4
AD5
AD6
AD7
AC0
AC1
AC2
AC3
AC4
Type
Description
Data and Control Bus Configuration
Options
UART
Parallel
SPI
I/O Port
Interface FIFO
Slave
Interface Interface
14
16
17
18
19
20
21
22
23
24
25
27
28
ADBUS0
ADBUS1
ADBUS2
ADBUS3
ADBUS4
ADBUS5
ADBUS6
ADBUS7
ACBUS0
ACBUS1
ACBUS2
ACBUS3
ACBUS4
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
5V safe bidirectional data / control bus, AD bit 0
5V safe bidirectional data / control bus, AD bit 1
5V safe bidirectional data / control bus, AD bit 2
5V safe bidirectional data / control bus, AD bit 3
5V safe bidirectional data / control bus, AD bit 4
5V safe bidirectional data / control bus, AD bit 5
5V safe bidirectional data / control bus, AD bit 6
5V safe bidirectional data / control bus, AD bit 7
5V safe bidirectional data / control bus, AC bit 0
5V safe bidirectional data / control bus, AC bit 1
5V safe bidirectional data / control bus, AC bit 2
5V safe bidirectional data / control bus, AC bit 3
5V safe bidirectional data / control bus, AC bit 4
TXD
RXD
RTS#
CTS#
DTR#
DSR#
DCD#
RI#
TXDEN#
D0
D1
D2
D3
D4
D5
D6
D7
RXF#
TXE#
RD#
WR
SCLK
SDI
SDO
CS
PortAD0
PortAD1
PortAD2
PortAD3
PortAD4
PortAD5
PortAD6
PortAD7
PortAC0
PortAC1
PortAC2
PortAC3
PortAC4
VDIP2 Vinculum VNC1L Prototyping Module
Datasheet Version 0.91
© Future Technology Devices Intl Ltd. 2006-2007
FTDI [ FUTURE TECHNOLOGY DEVICES INTERNATIONAL LTD. ]
