Rainbow Electronics DS1852 - Manual (Page 17)

DS1852
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Table 03h (Upper)
Address Byte 0 Byte 1 Byte 2 Byte 3 Byte 4 Byte 5 Byte 6 Byte 7
bits<7-0> bits<7-0> bits<7-0> bits<7-0> bits<7-0> bits<7-0> bits<7-0> bits<7-0>
HI ALARM LO ALARM HI WARN LO WARN
80h T alarm MSB T alarm LSB T alarm MSB T alarm LSB T warn MSB T warn LSB T warn MSB T warn LSB
88h V alarm MSB V alarm LSB V alarm MSB V alarm LSB V warn MSB V warn LSB V warn MSB V warn LSB
90h B alarm MSB B alarm LSB B alarm MSB B alarm LSB B warn MSB B warn LSB B warn MSB B warn LSB
98h P alarm MSB P alarm LSB P alarm MSB P alarm LSB P warn MSB P warn LSB P warn MSB P warn LSB
A0h R alarm MSB R alarm LSB R alarm MSB R alarm LSB R warn MSB R warn LSB R warn MSB R warn LSB
A8h reserved reserved reserved reserved reserved reserved reserved reserved
B0h reserved reserved reserved reserved reserved reserved reserved reserved
B8h reserved reserved reserved reserved reserved reserved reserved reserved
C0h reserved reserved reserved reserved reserved reserved reserved reserved
C8h V-ad scale MSB V-ad scale LSB B-ad scale MSB B-ad scale LSB P-ad scale MSB P-ad scale LSB R-ad scale MSB R-ad scale LSB
D0h chip address reserved reserved PW1 Byte 3 PW1 Byte 2 PW1 Byte 1 PW1 Byte 0 reserved
D8h B Fast trip0 B Fast trip1 B Fast trip2 B Fast trip3 B Fast trip4 B Fast trip5 B Fast trip6 B Fast trip7
E0h P Fast trip0 P Fast trip1 P Fast trip2 P Fast trip3 R Fast trip0 R Fast trip1 R Fast trip2 R Fast trip3
E8h config/o-ride reserved reserved reserved reserved reserved reserved reserved
F0h reserved reserved reserved reserved reserved reserved reserved reserved
F8h reserved reserved reserved reserved reserved reserved reserved reserved
Address E8h is RAM.
Read Access – Level 2, Write Access – Level 2
Fast-Trip Temperature Relationships
Fast Trip Byte 0 Byte 1 Byte 2 Byte 3 Byte 4 Byte 5 Byte 6 Byte 7
bits<7-0> bits<7-0> bits<7-0> bits<7-0> bits<7-0> bits<7-0> bits<7-0> bits<7-0>
* B-in
< –8 [-8 to 8) [8 to 24) [24 to 40) [40 to 56) [56 to 72) [72 to 88) ³ 88
* P-in
< 8 [8 to 40) [40 to 72) ³ 72
* R-in
< 8 [8 to 40) [40 to 72) ³ 72
* There is one degree of hysteresis at transitions only (e.g., for B-in, if temp increases to +8.0 °C then byte 2 is active. It will
remain active until temp reaches +24.0 °C or falls below +7.0°C.).
Table 03h (Expanded)
Byte Name Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
Chip address b 7 b 6 b 5 b 4 b 3 b 2 b 1 X
X-ad scale
MSB*
2 15 2 14 2 13 2 12 2 11 2 10 2 9 2 8
X-ad scale
LSB*
2 7 2 6 2 5 2 4 2 3 2 2 2 1 2 0
config/O-ride
reserved reserved manual AD
alarm
EE Bar SW-POR A/D Enable Manual fast
alarm
reserved
* V-, B-, P- or R- as appropriate