Rainbow-electronics DS1780 Bedienungsanleitung PDF herunterladen (Seite 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

<A7:A0>

(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

1 2 ... 11 12 13 14 15 16 17 18 19 20 21 ... 27 28

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Rainbow-electronics DS1780 Bedienungsanleitung Seite 16