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參數(shù)資料
| 型號： | MAX9952FCCB+T |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 7/24頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC PMU DUAL 64TQFP |
| 標(biāo)準(zhǔn)包裝： | 750 |
| 系列： | * |
MAX9951/MAX9952
Dual Per-Pin Parametric
Measurement Units
15
Maxim Integrated
Use
LOAD to asynchronously load all input registers
into the PMU registers. If
LOAD remains low when data
latches into an input register, the data also transfers to
the PMU register.
PMU Control
Programming both PMUs with the same data requires a
16-bit word. Programming each PMU with separate
data requires two 16-bit words.
The address bits specify which input registers the shift-
register loads. Table 2 describes the function of the
address bits.
Bits C1 and C2 specify how the data loads into the sec-
ond rank PMU registers. These 2 control bits serve a
similar function as the
LOAD input. The specified
actions occur when
CS goes high, whereas the LOAD
input loads the PMU register at anytime. When either
C1 or C2 is low, the corresponding PMU register is
transparent. Table 3 describes the function of the 2
control bits.
The NOP operation requires A1 = A2 = C1 = C2 = 0. In
this case, the data transfers through the shift register
without changing the state of the device.
D0
D1
D15
CONTROL
DECODE
INPUT REGISTER A
INPUT REGISTER B
PMU REGISTER A
SCLK
DIN
PMU REGISTER B
DOUT
LOAD
12
TO PMUA
12
TO PMUB
12
4
CS
Figure 4. Dual PMU Serial Port Block Diagram
Table 1. Bit Assignments
BIT
BIT NAME
15
INMODE
14
FMODE
13
MMODE
12
RS2
11
RS1
10
RS0
9
CLENABLE
8
HI-ZFORCE
7
HI-ZMSR
6
DISABLE
5B2
4B1
3A2
2A1
1C2
0C1
Table 2. Address Bit
A2
A1
OPERATION
0
Do not update any input register (NOP).
0
1
Only update input register A.
1
0
Only update input register B.
11
Update both input registers with the same
data.
Table 3. Control Bit
C2
C1
OPERATION
0
Data stays in input register.
01
Transfer PMU-A input register to PMU
register.
10
Transfer PMU-B input register to PMU
register.
11
Transfer both input registers to the PMU
registers.
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