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參數(shù)資料
| 型號： | PSD4135G1V-70B81 |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | Segmented Alphanumeric LED; Display Technology:LED; No. of Digits/Alpha:1; Body Material:GaP; LED Color:Green; Leaded Process Compatible:Yes; Luminous Intensity:3.3mcd RoHS Compliant: Yes |
| 中文描述： | Flash在系統(tǒng)可編程外設(shè)的16位微控制器 |
| 文件頁數(shù)： | 53/93頁 |
| 文件大?。?/td> | 503K |
| 代理商： | PSD4135G1V-70B81 |
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PSD4000 Series
Preliminary Information
50
9.4.3 Port Configuration Registers (PCRs)
Each port has a set of PCRs used for configuration. The contents of the registers can be
accessed by the microcontroller through normal read/write bus cycles at the addresses
given in Table 6. The addresses in Table 6 are the offsets in hex from the base of the
CSIOP register.
The pins of a port are individually configurable and each bit in the register controls its
respective pin. For example, Bit 0 in a register refers to Bit 0 of its port. The three PCRs,
shown in Table 19, are used for setting the port configurations. The default power-up state
for each register in Table 22 is 00h.
Register Name
Port
MCU Access
Control
Direction
Drive Select*
E,F,G
A,B,C,D,E,F,G
A,B,C,D,E,F,G
Write/Read
Write/Read
Write/Read
Table 19. Port Configuration Registers
*
NOTE:
See Table 22 for Drive Register bit definition.
The
PSD4000
Functional
Blocks
(cont.)
9.4.3.1 Control Register
Any bit set to
‘
0
’
in the Control Register sets the corresponding Port pin to MCU I/O Mode,
and a
‘
1
’
sets it to Address Out Mode. The default mode is MCU I/O. Only Ports E, F and
G have an associated Control Register.
9.4.3.2 Direction Register
The Direction Register controls the direction of data flow in the I/O Ports. Any bit set to
‘
1
’
in the Direction Register will cause the corresponding pin to be an output, and any bit set
to
‘
0
’
will cause it to be an input. The default mode for all port pins is input.
Figures 21 and 23 show the Port Architecture diagrams for Ports A/B/C and E/F/G
respectively. The direction of data flow for Ports A, B, C and F are controlled by the
direction register.
An example of a configuration for a port with the three least significant bits set to output
and the remainder set to input is shown in Table 21. Since Port D only contains four pins,
the Direction Register for Port D has only the four least significant bits active.
Direction Register Bit
0
1
Port Pin Mode
Input
Output
Table 20. Port Pin Direction Control
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
0
0
0
0
0
1
1
1
Table 21. Port Direction Assignment Example
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PDF描述 |
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| PSD4135F2V-70B81 | Segmented Alphanumeric LED; Display Technology:LED; No. of Digits/Alpha:1; Body Material:GaAsP/GaP; LED Color:Red; Leaded Process Compatible:Yes; Luminous Intensity:3.8mcd RoHS Compliant: Yes |
| PSD4135G2V-70B81 | Segmented Alphanumeric LED; Display Technology:LED; No. of Digits/Alpha:1; Body Material:GaAsP/GaP; LED Color:Red; Leaded Process Compatible:Yes; Luminous Intensity:3.8mcd RoHS Compliant: Yes |
| PSD4135F3V-70B81 | Segmented Alphanumeric LED; Display Technology:LED; Number of Digits/Alpha:1; Body Material:GaAsP/GaP; LED Color:Red; Leaded Process Compatible:Yes; Luminous Intensity:3.8mcd RoHS Compliant: Yes |
| PSD4135G3V-70B81 | Segmented Alphanumeric LED; Display Technology:LED; No. of Digits/Alpha:1; Body Material:GaAsP/GaP; LED Color:Red; Leaded Process Compatible:Yes; Luminous Intensity:3.8mcd RoHS Compliant: Yes |
| PSD4135F1-A-70B81 | Flash In-System-Programmable Peripherals for 16-Bit MCUs |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PSD4135G1V-70B81I | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Flash In-System-Programmable Peripherals for 16-Bit MCUs |
| PSD4135G1V-70J | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Flash In-System-Programmable Peripherals for 16-Bit MCUs |
| PSD4135G1V-70JI | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Flash In-System-Programmable Peripherals for 16-Bit MCUs |
| PSD4135G1V-70M | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Flash In-System-Programmable Peripherals for 16-Bit MCUs |
| PSD4135G1V-70MI | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Flash In-System-Programmable Peripherals for 16-Bit MCUs |
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