The Solid State Mass Memory (SSMM) is 25 Gbit (about 3 GByte) with a 5Mbps data rate.
The telemetry rate shall be switchable between 8 bps and 65536 bps
The bus throughput shall be minimal 131 kbps.
The SSMM shall support an input data rate of up to 5 Mbps useable data (physical data rate excluding IEEE-1355 protocol overhead)
The telecommand rate shall be switchable between at least 4 bit rates, i.e. 7.81 (4000/2 ), 250, 1000 and 2000 bps.
The usable memory size shall be at least 1MWord RAM and 512 KWords EEPROM for each of 4 processors, and 512KWords PROM (redundant) accessible from each processor.
The SSMM shall have a size of at least 25 Gbit at end of life taking into account failures in memory cells.
The Central Interface Unit (CIU) provides the communication among the units of the Lander. This is a synchronous, serial data transmission channel with the transmission rate of 32kbit/s.
The Harris RTX2010 processor has been selected for the DPU boards
Note that there are two Data Process Units (DPU) in warm-redundant mode. Also note that this is a 16 bit processor.
Data: 235 Mbit during primary mission, 65 Mbit during each subsequent
60 h period
Data rate 16 kbit/sec
central computing and data storage capability (2x2 Mbyte, RAM, EEPROM)