參數(shù)資料
型號(hào): PSOC
廠商: Cypress Semiconductor Corp.
英文描述: 8-Bit Programmable System-on-Chip (PSoC⑩) Microcontrollers
中文描述: 8位可編程系統(tǒng)(的PSoC⑩)微控制器片上
文件頁(yè)數(shù): 76/148頁(yè)
文件大?。?/td> 1412K
代理商: PSOC
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Cypress MicroSystems CY8C25122/CY8C26233/CY8C26443/CY8C26643 Family Data Sheet
76
Document #: 38-12010 CY Rev. ** CMS Rev. 3.20
September 5, 2002
divided into distinct bit fields. Some bit fields set the
PSoC block's resistor ratios or capacitor values. Others
configure switches and multiplexers that form connec-
tions between internal block nodes. Additionally, a block
may be connected via local interconnection resources to
neighboring analog PSoC blocks, reference voltage
sources, input multiplexers and output busses. Specific
advantages and applications of each type are treated
separately below.
10.7.1 Local Interconnect
Analog continuous-time PSoC blocks occupy the top
row, (row 0) of the analog array. Designated ACA for
analog continuous-time subtype "A," each connects to its
neighbors by means of three multiplexers. (Note that
unlike the switched capacitor blocks, the continuous time
blocks in the current family of parts only have one sub-
type.) The three are the non-inverting input multiplexer,
"PMux," the inverting input multiplexer, "NMux," and the
"RBotMux" which controls the node at the bottom of the
resistor string. The bit fields, which control these multi-
plexers, are named PMux, NMux, and RBotMux, respec-
tively. The following diagrams show how each
multiplexer connects its ACA block connect to its neigh-
bors. Each arrow points from an input source, either a
PSoC block, bus or reference voltage to the block where
it is used. Each arrow is labeled with the value to which
the bit-field must be set to select that input source.
10.7.1.1
NMux
Figure 17: NMux Connections
N (Inverting) Input Multiplexer Connections
ASB
20
ACA
00
ACA
01
ACA
02
ACA
03
ASA
10
ASB
11
ASA
12
ASB
13
ASA
21
ASB
22
ASA
23
(6)
(5)
REFLO
AGND
(3)
(1)
(6)
(5)
AGND
(1)
(1)
(3)
(1)
AGND
(0)
(0)
(0)
(0)
(6)
(5)
(6)
(5)
(3)
(2)
(3)
(2)
REFHI
REFHI
REFLO
REFLO
(3)
(3)
(2)
(2)
(3)
(4)
(3)
(4)
(3)
(4)
(3)
(4)
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