Keith & Koep GmbH
Functional specification
MT6N (MT606)
9
von
49
3.5
Real Time Clock (RTC)
MT6N contains a Low-Power RTC from Philips, called PCF8593. This chip uses
the same two wire bus as the serial EEPROM, which is described in figure 2 on
page 5.
FIGURE 3.
The slave address of the RTC
Read address: A3
Write address: A2
The RTC is either supplied from the onboard battery or from an external battery.
3.6
JTAG interfaces
The SA-1110 contains a JTAG port that allows test access to the I/O pins of the
device. The JTAG port is designed as a 10-pin header connector.
With a second JTAG interface program the CPLDs on board. It is designed as a 6-
pin header.
3.7
Reset
There are two sources of reset on the MT6N:
1.
Power-on Reset
2.
Reset from the watchdog timer
Power-on reset is generated automatically when power is applied to the board. It
can also be initiated by a push button switch attached to a 2-pole 0.1-inch pitch con-
nector on the board.
Resets generated by any of these methods are equivalent and indistinguishable.
3.8
Power Supply
Power supply is possible on several ways:
First: The Power supply of MT6N is accessible by a power connector by Phoenix
with part number PSC 1,5/3-M. Pin 1 is the positive one (+24V) and Pin 3 is
Ground.
Second: It is also possible to supply MT6N by an optional PCB where the TTL I/O
ports are electrically isolated. More information: http://www.keith-koep.com.
Third: Supply through a 2-pin connector by Phoenix, which is optional and usually
not placed.
1
1
1
0
0
0
0
R/W
Device Type
Identifier
High order
word address
