Rainbow Electronics ATA6837 - Manual (Page 6)

6
4953C–AUTO–09/07
ATA6837 [Preliminary]
Table 3-2. Output Data Protocol
Bit
Output (Status)
Register Function
0 TP
Temperature prewarning: high = warning
(overtemperature shutdown see remark below)
1 Status LS1
Normal operation: high = output is on, low = output is off
Open-load detection: high = open load, low = no open load
(correct load condition is detected if the corresponding output is
switched off)
2 Status HS1
Normal operation: high = output is on, low = output is off
Open-load detection: high = open load, low = no open load
(correct load condition is detected if the corresponding output is
switched off)
3 Status LS2 Description see LS1
4 Status HS2 Description see HS1
5 Status LS3 Description see LS1
6 Status HS3 Description see HS1
7 Status LS4 Description see LS1
8 Status HS4 Description see HS1
9 Status LS5 Description see LS1
10 Status HS5 Description see HS1
11 Status LS6 Description see LS1
12 Status HS6 Description see HS1
13 SCD
Short circuit detected: set high, when at least one output is switched off
by a short circuit condition
14 INH
Inhibit: this bit is controlled by software (bit SI in input register) and
hardware inhibit (pin INH). High = standby, low = normal operation
15 PSF Power supply fail: undervoltage at pin VS detected
Note: Bit 0 to 15 = high: overtemperature shutdown
Table 3-3. Status of the Input Register After Power on Reset
Bit 15
(SI)
Bit 14
(SCT)
Bit 13
(OLD)
Bit 12
(HS6)
Bit 11
(LS6)
Bit 10
(HS5)
Bit 9
(LS5)
Bit 8
(HS4)
Bit 7
(LS4)
Bit 6
(HS3)
Bit 5
(LS3)
Bit 4
(HS2)
Bit 3
(LS2)
Bit 2
(HS1)
Bit 1
(LS1)
Bit 0
(SRR)
H H H L L L L L L L L L L L L L