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SH79F166AP/044PR Scheda tecnica(PDF) 33 Page - SINOWEALTH Electronic Ltd

Il numero della parte SH79F166AP/044PR
Spiegazioni elettronici  Enhanced 8051 Microcontroller with 10bit ADC
PDF  113 Pages
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Produttore elettronici  SINOWEALTH [SINOWEALTH Electronic Ltd]
Homepage  https://en.sinowealth.com
Logo SINOWEALTH - SINOWEALTH Electronic Ltd

SH79F166AP/044PR Scheda tecnica(HTML) 33 Page - SINOWEALTH Electronic Ltd

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SH79F166A
33
7.7 I/O Port
7.7.1 Features
 41 bi-directional I/O ports
 Share with alternative functions
The SH79F166A has 41 bi-directional I/O ports. The PORT data is put in Px register. The PORT control register (PxCRy)
controls the PORT as input or output. Each I/O port has an internal pull-high resistor, which is controlled by PxPCRy when the
PORT is used as input (x = 0-5, y = 0-7).
For SH79F166A, some I/O pins can share with alternative functions. There exists a priority rule in CPU to avoid these functions
be conflict when all the functions are enabled. (Refer to Port Share Section for details).
7.7.2 Register
Table 7.15 Port Control Register
E1H - E5H
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
P0CR (E1H, Bank0)
P0CR.7
P0CR.6
P0CR.5
P0CR.4
P0CR.3
P0CR.2
P0CR.1
P0CR.0
P1CR (E2H, Bank0)
P1CR.7
P1CR.6
P1CR.5
P1CR.4
P1CR.3
P1CR.2
P1CR.1
P1CR.0
P2CR (E3H, Bank0)
P2CR.7
P2CR.6
P2CR.5
P2CR.4
P2CR.3
P2CR.2
P2CR.1
P2CR.0
P3CR (E4H, Bank0)
P3CR.7
P3CR.6
P3CR.5
P3CR.4
P3CR.3
P3CR.2
P3CR.1
P3CR.0
P4CR (E5H, Bank0)
-
-
-
P4CR.4
P4CR.3
P4CR.2
P4CR.1
P4CR.0
P5CR (E1H, Bank1)
-
-
-
-
P5CR.3
P5CR.2
P5CR.1
P5CR.0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Reset Value
(POR/WDT/LVR/PIN)
0
0
0
0
0
0
0
0
Bit Number
Bit Mnemonic
Description
7-0
PxCRy
x = 0-5, y = 0-7
Port input/output direction control Register
0: input mode
1: output mode
Table 7.16 Port Pull up Resistor Control Register
E9H - ECH
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
P0PCR (E9H, Bank0)
P0PCR.7
P0PCR.6
P0PCR.5
P0PCR.4
P0PCR.3
P0PCR.2
P0PCR.1
P0PCR.0
P1PCR (EAH, Bank0)
P1PCR.7
P1PCR.6
P1PCR.5
P1PCR.4
P1PCR.3
P1PCR.2
P1PCR.1
P1PCR.0
P2PCR (EBH, Bank0)
P2PCR.7
P2PCR.6
P2PCR.5
P2PCR.4
P2PCR.3
P2PCR.2
P2PCR.1
P2PCR.0
P3PCR (ECH, Bank0)
P3PCR.7
P3PCR.6
P3PCR.5
P3PCR.4
P3PCR.3
P3PCR.2
P3PCR.1
P3PCR.0
P4PCR (EDH, Bank0)
-
-
-
P4PCR.4
P4PCR.3
P4PCR.2
P4PCR.1
P4PCR.0
P5PCR (E9H, Bank1)
-
-
-
-
P5PCR.3
P5PCR.2
P5PCR.1
P5PCR.0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Reset Value
(POR/WDT/LVR/PIN)
0
0
0
0
0
0
0
0
Bit Number
Bit Mnemonic
Description
7-0
PxPCRy
x = 0-5, y = 0-7
Input Port internal pull-high resistor enable/disable control
0: internal pull-high resistor disabled
1: internal pull-high resistor enabled



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