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Unibrain Fire-i 501/511/601/701/702/810 Operation Manual Page 54
4.8. Time Stamp Register
The Time stamp register may be inquired from the fireWire bus. CYCLE_TIME register can be configured as shown in
the table below. You may also get the same value from the user defined, but we recommend using this.
Address Description( bit : msb*) Read/Write
0xF0000200 CYCLE_TIME
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
SECONDS COUNT CYCLE COUNT CYCLE OFFSET
Bit Numbe r Bit Name Function DIR Description
0 - 6
7 - 19
20 - 31
SECONDS COUNT
CYCLE COUNT
CYCLE OFFSET
Seconds Coun t
Cycle Coun t
Cycle Offset
R/W
R/W
R/W
1 Hz cycle timer counte r
8,000 Hz c ycle timer counte r
24.576 MHz c ycle timer counte r
Read
4.9. Serial Interface
Fire-i industrial cameras are equipped with SIO (Serial input/output) feature described in the IIDC 1.31 specification.
By using the serial interface, users can execute commands by writing data in a specific address in the FireWire address
range. SIO can be further used as a RS232 interface which supports pass through and custom commands.
4.9.1. SIO Pass through Scheme
User Target System
SIO(RS232) Pass Through
Camera
FIREWIRE
Cable
RS232C
System
Controller