6.4
Serial Communication
The Camera Link interface provides two LVDS signal pairs for the communication between the
camera and the frame grabber. This is an asynchronous serial communication based on RS-232
protocol.
The configuration of the serial line is:
• Full duplex/without handshaking
• 8-bit data, no parity bit, 1 stop bit
• 9600 bauds at power up, then programmable up to 115200 bauds (see register
Communication Speed Multiplieur @ 001H, Internal Register Mapping on page 16.
Table 6-5.
Camera Link Serial Communication Description
Signal Name
I/O
Type
Description
Differential pair for serial communication
to the frame grabber
SerTFG
SerTC
O
RS644
Differential pair for serial communication
from the frame grabber
I
RS644
6.4.1
Internal Register
Table 6-6.
Internal Register Mapping
Access Type
End
Start Addr
(Hex)
Factory
Settings
Size (Dec)
Addr (Hex)
Processing Internal Task
Description
Synchronization register for serial
communication (value 00)
000
001
1
RO
RO
-
Communication speed multiplier (9600 -
115,2K): volatile register 1, 2, 3, 4, 6, 8, 12
1
RW
1
040
080
0C0
100
51
8
RO
RO
RW
RW
-
Hardware identifier
-
-
Firmware identifier
51
4
User identifier
RW
Status (ref. Camera Status Management)
Lock/Unlock mode: advanced user/user
1: Lock advanced user mode
(into user mode)
104
108
109
4
1
1
WO
RO
-
-
-
Unlock key value: unlock user
Privilege level
1: Advanced user mode
2: User mode
Current configuration save in Eeprom
1: User settings (allowed only for advanced
user mode)
WO
2 to 4: User settings
16
ATMOS -2M60/2M30 [Preliminary]
5440A–IMAGE–10/05
ATMEL [ ATMEL ]
