61
Programmable Hardware Manual (PHM)
© Tibbo Technology Inc.
Ethernet interface
10/100BaseT Ethernet, Auto-MDIX, magnetics
not
built-in
Serial ports
4 ports, CMOS-level.
UART capabilities
Baudrates up to 921'600bps;
none/even/odd/mark/space parity and 7/8
bits/character.
Number of I/O lines
17 lines, all lines are 5V-tolerant;
16 lines are combined into five 8-bit ports;
8 lines can be used as interrupt lines.
Max. load current for each
I/O line
10mA
Square wave generator
6Hz - 22'1184MHz, primarily intended for driving
external buzzer
Real-time counter (RTC)
40 bit, increments at 128Hz, has its own backup
power input
Clock frequency
11.0592MHz with PLL off
88.4736MHz with PLL on
Flash memory
1024KBytes, entire memory minus 64KB is available
to store Tibbo BASIC/C application and data.
Typical write endurance is 100'000 write cycles per
256-byte sector. See the warning in
EEPROM memory
2048 bytes, 2020 bytes available to store
application data.
Typical write endurance is around 1'000'000 write
cycles per 16-byte EEPROM sector. See
Nominal power supply
voltage (VCC pin)
DC 3.3V, +/- 5%
Reset circuit trip voltage
(VCC pin)
3.0V on power-up (i.e. when the voltage on VCC is
rising)
2.9V on brown-out (i.e. when the voltage on VCC
is dropping)
Operating current (VCC
pin), excluding hardware
consumed by an add-on
modules plugged into the
EM1000
40mA with PLL off, Ethernet cable unplugged
50mA with PLL off, 10BaseT mode
110mA with PLL off, 100BaseT mode
160mA with PLL on, Ethernet cable unplugged
170mA with PLL on, 10BaseT mode
230mA with PLL on, 100BaseT mode
Nominal backup voltage
(VCCB pin)
2.5V
Backup current (VCCB pin)
1mA when the EM1000 is running (3.3V on VCC)
13uA when the EM1000 is not powered (0V on
VCC)
Operating temperature
-40 to +70 degrees C