SMD1108 Datasheet, PDF (15/29 Pages) Summit Microelectronics, Inc. – 8-Channel Auto-Monitor ADC In System Programmable Analog (ISPA) Device

SMD1108
Preliminary
7
UV7
7
UV7
7
UV7
7
UV7
6
UV6
6
UV6
6
UV6
6
UV6
5
UV5
5
UV5
5
UV5
5
UV5
4
3
2
1
0
Function
UV4
UV3
UV2
UV1
UV0
UV threshold voltage for V_CC0/CH4
2052 Table06
Table 6. Register 80 V_CC0/CH4 UV Threshold
4
3
2
1
0
Function
UV4
UV3
UV2
UV1
UV0
UV threshold voltage for V_CC1/CH5
2052 Table07
Table 7. Register 81 V_CC1/CH5 UV Threshold
4
3
2
1
0
Function
UV4
UV3
UV2
UV1
UV0
UV threshold voltage for V_CC2/CH6
2052 Table08
Table 8. Register 82 V_CC2/CH6 UV Threshold
4
3
2
1
0
Function
UV4
UV3
UV2
UV1
UV0
UV threshold voltage for V_CC3/CH7
2052 Table09
Table 9. Register 83 V_CC3/CH7 UV Threshold
Registers 84 through 87 set the over-voltage threshold for
the selected channel: CH4 through CH7. The OV thresh-
old minimum is equal to 120% of the channel's UV thresh-
old. An offset of as much as 244% of the UV threshold is
possible.
The formula is [OVTH – (UVTH × 1.2)] / (UVTH × 0.04) =
Decimal value (convert to hexadecimal).
The maximum register value would be 31DEC = 1FHEX.
7
6
5
x
x
x
7
6
5
x
x
x
7
6
5
x
x
x
7
6
5
x
x
x
SUMMIT MICROELECTRONICS, Inc.
4
3
2
1
0
Function
OV4 OV3 OV2 OV1 OV0
Over-voltage offset for V_CC0/CH4
2052 Table10 1.0
Table 10. Register 84 V /CH4 OV Threshold
CC0
4
3
2
1
0
Function
OV4 OV3 OV2 OV1 OV0
Over-voltage offset for V /CH5
CC1
2052 Table11 1.0
Table 11. Register 85 V_CC1/CH5 OV Threshold
4
3
2
1
0
Function
OV4 OV3 OV2 OV1 OV0
Over-voltage offset for V_CC2/CH6
2052 Table12 1.0
Table 12. Register 86 V_CC2/CH6 OV Threshold
4
3
2
1
0
Function
OV4 OV3 OV2 OV1 OV0
Over-voltage offset for V_C32/CH7
2052 Table13 1.0
Table 13. Register 87 V_CC3/CH7 OV Threshold
2052 2.0 10/05/01
15