Fujitsu DevKit16 User Manual page 59

Serial line reset
jumpers:
UART 0&1 serial
line reset jumpers:
J23 pinout:
GND 1
SOTU 3
SINU 5
To User UART reset
RTSU 11
CTSU 13
Factory default setting: 3-4 short, 5-6 short, 11-12 short, 13-14 short
Note: jumper names are valid for the Main board version 1.3. If your
motherboard version is different form that one, please download a new
version of this document
The Serial line reset function is used by both the PE and Softune debugger. Its
purpose is to allow reseting the board through the debugger communication
interface. The Serial line reset function is provided on all the three RS232
interfaces – UART0, UART1 and User UART (DTR lines of these interfaces
are dedicated to this function). However, it is possible to use only two of these
ports concurrently: the User UART and one of the UART0 or UART1. For each
of these two ports, the reset polarity of the DTR line can be choosen.
J5: Port selection (UART 0-1) for the Serial line reset
In 1-2 position, the DTR
to the J21, pin 8.
In 2-3 position, the DTR
to the J21, pin 8.
Note: the selected DTR
there is a jumper in the 7-8 position on the J21 header.
J2: UART0&1 Serial line reset - polarity selection
In the 1-2 position, the "1" level on the selected DTRx line will cause the
CPU reset,
In the 2-3 position, the "0" level on the selected DTRx line will cause the
CPU reset.
2 GND
4 to RS232
6 from RS232
8 from RS232
VCC 9 10 VCC
12 from RS232
14 from RS232
NC 15 16 NC
line of the UART0 RS-232 interface is connected
0
line of the UART1 RS-232 interface is connected
1
line is connected to the UART reset logic only if
x
57 57
57 57
input
F
output
F
output for
F
output
F
output
F