TDC-GPX acam messelectronic gmbh, TDC-GPX Datasheet - Page 17

• Manufacturer Part Number: TDC-GPX
• Description: Precision Time Interval Measurement
• Manufacturer: acam messelectronic gmbh

1.7 Register settings
In depends on the operating mode whether bits are relevant or not. Especially the read data structure depends on
the operating mode.
1.7.1 Write Registers
Service bits are for acam testing and security purposes only, Please use the recommended values.
These registers can also be read back.
Adjustment bits recommendation:
R-Mode: Adj1 = Adj4 = Adj7 = 2, Adj 2 = Adj 8 = 6, Adj5 = 6
G-Mode: Adj2 = Adj4 = Adj6 = Adj8 = 5.
Register 0: Adr = 0
0
1
2
3
4
5
6
7 – 9
10 – 18
19 – 27
Register 1: Adr = 1
0 – 3
4 – 7
8 – 11
12 – 15
16 – 19
20 – 23
24 – 27
Register 2: Adr = 2
0
1
2
3 – 11
12 – 15
16 – 19
20 – 21
22 – 23
24 – 25
26 – 27
acam-messelectronic gmbh - Am Hasenbiel 27 - D-76297 Stutensee-Blankenloch - Germany - www.acam.de
ROsc
RiseEn0
FallEn0
RiseEn1
FallEn1
RiseEn2
FallEn2
HQSel
TRiseEn
TFallEn
Adj0
Adj1
Adj2
Adj3
Adj4
Adj5
Adj6
G-Mode
I-Mode
R-Mode
Disable
Adj7
Adj8
DelRise1
DelFall1
DelRise2
DelFall2
‘1’ = start ring oscillator
‘1’ enable rising edge sensitivity on DStart input
‘1’ enable falling edge sensitivity on DStart input
‘1’ enable rising edge sensitivity on DStop1 input
‘1’ enable falling edge sensitivity on DStop1 input
‘1’ enable rising edge sensitivity on DStop2 input
‘1’ enable falling edge sensitivity on DStop2 input
Service bits, must be set to ‘001’
‘1’ enables rising edges for the TTL inputs
Bit 10 = TStart, Bit 11 = TStop1 … Bit 18 = TStop8
‘1’ enables falling edges for the TTL inputs
Bit 19 = TStart, Bit 20 = TStop1 … Bit 27 = TStop8
Channel adjustment bits channel 0 (Start)
Channel adjustment bits channel 1 (R-Mode = 2, G-Mode = 0)
Channel adjustment bits channel 2 (R-Mode = 6, G-Mode = 5)
Channel adjustment bits channel 3 (R-Mode = 0, G-Mode = 0)
Channel adjustment bits channel 4 (R-Mode = 2, G-Mode = 5)
Channel adjustment bits channel 5 (R-Mode = 6, G-Mode = 0)
Channel adjustment bits channel 6 (R-Mode = 0, G-Mode = 5)
‘1’ = switch on G-Mode
‘1’ = switch on I-Mode
‘1’ = switch on R-Mode
‘1’ = disable channel
Bit 3 = channel 0 (Start) … Bit 11 = channel 8
Channel adjustment bits channel 7 (R-Mode = 2, G-Mode = 0)
Channel adjustment bits channel 8 (R-Mode = 6, G-Mode = 5)
Service bits, set ‘0’
Service bits, set ‘0’
Service bits, set ‘0’
Service bits, set ‘0’
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x
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I
I
I
TDC-GPX
G
G
G
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x
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R
R
R
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x
x
x
x
x
x
x
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M
M
M
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