參數(shù)資料
型號(hào)： X96012V14I
廠商： INTERSIL CORP
元件分類(lèi)： 模擬信號(hào)調(diào)理
英文描述： Universal Sensor Conditioner with Dual Look Up Table Memory and DACs
中文描述： SPECIALTY ANALOG CIRCUIT, PDSO14
封裝： PLASTIC, MO-153AC, TSSOP-14
文件頁(yè)數(shù)： 22/27頁(yè)
文件大小： 383K
代理商： X96012V14I
22
FN8216.0
March 10, 2005
X96012 Memory Map
The X96012 contains a 2176 bit array of mixed volatile
and nonvolatile memory. This array is split up into four
distinct parts, namely: (Refer to figure 15.)
– General Purpose Memory (GPM)
– Look-up Table 1 (LUT1)
– Look-up Table 2 (LUT2)
– Control and Status Registers
The GPM is all nonvolatile EEPROM, located at mem-
ory addresses 00h to 7Fh.
Figure 15. X96012 Memory Map
The Control and Status registers of the X96012 are
used in the test and setup of the device in a system.
These registers are realized as a combination of both
volatile and nonvolatile memory. These registers
reside in the memory locations 80h through 8Fh. The
reserved bits within registers 80h through 86h, must
be written as “0” if writing to them, and should be
ignored when reading. The reserved registers, from
88h through 8Fh, must not be written, and their con-
tent should be ignored.
Both look-up tables LUT1 and LUT2 are realized as
nonvolatile EEPROM, and extend from memory loca-
tions 90h - CFh and D0h - 10Fh respectively. These
look-up tables are dedicated to storing data solely for
the purpose of setting the outputs of Current Genera-
tors I1 and I2 respectively.
All bits in both look-up tables are preprogrammed to
“0” at the factory.
Addressing Protocol Overview
All Serial Interface operations must begin with a
START, followed by a Slave Address Byte. The Slave
address selects the X96012, and specifies if a Read or
Write operation is to be performed.
It should be noted that the Write Enable Latch (WEL)
bit must first be set in order to perform a Write opera-
tion to any other bit. (See “WEL: Write Enable Latch
(Volatile)” on page 14.) Also, all communication to the
X96012 over the 2-wire serial bus is conducted by
sending the MSB of each byte of data first.
Even though the 2176 bit memory consists of four dif-
fering functions, it is physically realized as one contig-
uous array, organized as 17 pages of 16 bytes each.
The X96012 2-wire protocol provides one address
byte, therefore, only 256 bytes can be addressed
directly. The next few sections explain how to access
the different areas for reading and writing.
Figure 16.
Slave Address (SA) Format
0
7
Look-up Table 2
(LUT2)
Address
Size
64 Bytes
64 Bytes
16 Bytes
128 Bytes
10Fh
FFh
00h
7Fh
80h
8Fh
90h
CFh
D0h
Look-up Table 1
(LUT1)
Control & Status
Registers
General Purpose
Memory (GPM)
SA6
SA7
SA5
SA3
SA2
SA1
SA0
Device Type
Identifier
Read or
Write
SA4
Slave Address
Bit(s)
SA7 - SA4
SA3 - SA1
SA0
Description
Device Type Identifier
Device Address
Read or Write Operation Select
R/W
1
0
1
0
Address
Device
AS0
AS1
AS2
X96012
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