Rainbow Electronics DS1780 - Manual (Page 16)

DS1780
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Note: To properly implement the NAND TREE test on the PCB, no pins listed in the tree should be
connected directly to power or ground; if a pin is needed to configure as a permanent low such as an
address, it should be connected to ground through a low value resister such as 330 (to allow the ATE
(Automatic Test Equipment) to drive it high.
DS1780 NAND TREE TEST FLOW Figure 7
DS1780 REGISTERS AND RAM
INTERNAL ADDRESS REGISTER Table 10.0
BIT NAME R/W DESCRIPTION
<7:0> Address Pointer W Address of RAM and Registers. See the tables below for detail.
ADDRESS POINTER (POWER ON DEFAULT 00h) Table 10.1
REGISTERS AND RAM
(HEX)
POWER ON VALUE OF REGISTERS:
<7:0> (BINARY)
Configuration Register 40h 0000 1000
Interrupt INT Status Register 1 41h 0000 0000
Interrupt INT Status Register 2 42h 0000 0000
INT Mask Register 1 43h 0000 0000
INT Mask Register 2 44h 0000 0000
Chassis Intrusion Clear Register 46h 0000 0000
VID Register 47h <7:4> = 0101, <3:0> = VID3 - VID0
Serial Address Register 48h 0010 1101
VID 4 Register 49h <7:1> = 1000 000, <0>=VID 4
Temperature Configuration Register 4Bh 0000 0001
Test Register 15h 0000 0000
Analog Output 19h 1111 1111
Value RAM 20h-3Dh
Company ID 3Eh 1101 1010
Stepping 3Fh 0000 0001