Rainbow Electronics DS1857 - Manual (Page 10)

DS1857
Dual Temperature-Controlled Resistors with
External Temperature Input and Monitors
10 ____________________________________________________________________
ADEN
(ADDRESS
ENABLE)
NO. OF SEPARATE
DEVICE
ADDRESSES
ADDITIONAL
INFORMATION
0 2 See Figure 2
1 1 (Main Device only) See Figure 3
Table 4. ADEN Address Configuration
ADEN ADFIX
AUXILIARY
ADDRESS
MAIN ADDRESS
0 0 A0h *
0 1 A0h
EEPROM
(Table 01, 8Ch)
1 0 N/A *
1 1 N/A
EEPROM
(Table 01, 8Ch)
Table 5. ADEN and ADFIX Bits
MAIN
DEVICE
MON LOOK-UP
TABLE CONTROL R0 LOOK-UP
TABLE
AUXILIARY
DEVICE
0
DEC
0
95
96
127
128
143
199
MEMORY PARTITION WITH ADEN BIT = 0
EN
EN
EN
EN
SEL
EN
SEL
7Fh 7Fh
80h 80h
60h
C7h
F0h
FFh
RESERVED RESERVED
8Fh
5Fh
TABLE SELECT
MAIN DEVICE ENABLE
AUXILIARY DEVICE ENABLE
DECODER
0
F0h
FFh
R1 LOOK-UP
TABLE
EN
SEL
80h
C7h
TABLE 03 TABLE 02 TABLE 01
Figure 2. Memory Organization, ADEN = 0
MAIN
DEVICE
MON LOOK-UP
TABLE CONTROL R0 LOOK-UP
TABLE
AUXILIARY
DEVICE
80h
DEC
0
95
96
127
128
143
199
255
EN
EN
EN
EN
SEL
EN
SEL
FFh
7Fh
80h 80h
C7h
F0h
FFh
RESERVED RESERVED
8Fh
TABLE SELECT
TABLE 00
MAIN DEVICE ENABLE
DECODER
0
F0h
FFh
R1 LOOK-UP
TABLE
EN
SEL
80h
C7h
TABLE 03 TABLE 02 TABLE 01
MEMORY PARTITION WITH ADEN BIT = 1
60h
5Fh
Figure 3. Memory Organization, ADEN = 1
* 1 0 1 0 A 2 A 1 A 0 R/W