Time stamp register, Serial interface, Sio pass through scheme – Unibrain 780 User Manual
Page 52: Sio(rs232) pass through, User target system
Unibrain Fire-i 580/780/785/980 Operation Manual
Page 46
4.7.
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
Read
4.8.
Serial Interface
Fire-i industrial cameras are equipped with SIO (Serial input/output) feature described in the IIDC 1.32 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.
4.8.1. SIO Pass Through Scheme
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 Nam e
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 c ycle timer counte r
8,000 Hz c ycle timer counte r
24.576 MHz c ycle timer counte r
User Target System
SIO(RS232) Pass Through
Camera
FIREWIRE
Cable
RS232C
System
Controller