User's Manual

User Manual
Version 01.00
2010-01-25
deRFmega128-22A001 and deRFmega128-22A021
dresden elektronik
ingenieurtechnik gmbh
Enno-Heidebroek-Str. 12
01237 Dresden
Tel.: 0351 – 31 85 00
Fax: 0351 – 3 18 50 10
[e-mail]
www.dresden-elektronik.de
Page 11 of 20
Table 7: Signal description list
Signal name Function Type
Active
Level
Comments
Power
VCC Voltage Regulator Power Supply
Input
Power 1.8V to 3.6V
GND Ground
Clocks and Oscillators
CLKI External Clock Input Input
CLKO Divided System Clock Output Output
JTAG
TCK Test Clock Input No pull-up resistor
TDI Test Data In Input No pull-up resistor
TDO Test Data Out Output
TDM Test Mode Select Input No pull-up resistor
SPI Serial Programming
PDI Data Input
PDO Data Output
Reset
RSTN Microcontroller Reset I/O Low Pull-Up resistor
USART
TXD0 – TXD1 Transmit Data
RXD0 – RXD1 Receive Data
XCK0 – XCK1 Serial Clock
Timer/Counter and PWM Controller
OC0A-OC3A Output Compare and PWM Output
A for Timer/Counter 0 to 3
OC0B-OC3B Output Compare and PWM Output
B for Timer/Counter 0 to 3
OC0C-OC3C Output Compare and PWM Output
C for Timer/Counter 0 to 3
T0, T1, T3 Timer/Counter 0,1,3 Clock Input Input
ICP1
ICP3
Timer/Counter Input Capture Trig-
ger 1 and 3
Input
AMR Automated Meter Reading Input
Interrupt
PCINT0 -
PCINT7
Pin Change Interrupt Source 0 to 7 Output
INT0 – INT7 External Interrupt Input 0 to7 Input
SPI
MISO SPI Master In/Slave Out I/O
MOSI SPI Master Out/Slave In I/O
SCK SPI Bus Serial Clock I/O
SSN SPI Slave Port Select I/O
Two-Wire-Interface
SDA Two-Wire Serial Interface Data I/O Onboard 4k7 Resist.
SCL Two-Wire Serial Interface Clock I/O Onboard 4k7 Resist.