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參數(shù)資料
| 型號(hào)： | μPD784036 |
| 廠商： | NEC Corp. |
| 英文描述： | 8/16 Bit Single Chip Microcontrollers(8/16 位微控制器) |
| 中文描述： | 8 / 16位單片機(jī)微控制器（8 / 16位微控制器） |
| 文件頁(yè)數(shù)： | 27/98頁(yè) |
| 文件大小： | 650K |
| 代理商： | ΜPD784036 |
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μ
PD784035, 784036, 784037, 784038
7.2.3 Special function registers (SFRs)
The special function registers are registers with special functions such as mode registers and control registers
for built-in peripheral hardware. The special function registers are mapped onto the 256-byte space between 0FF00H
and 0FFFFH
Note
.
Note
Applicable when the LOCATION 0 instruction is executed. FFF00H-FFFFFH when the LOCATION 0FH
instruction is executed.
Caution Never attempt to access addresses in this area where no SFR is allocated. Otherwise, the
μ
PD784038 may be placed in the deadlock state. The deadlock state can be cleared only by a
reset.
Table 7-1 lists the special function registers (SFRs). The titles of the table columns are explained below.
Abbreviation ................... Symbol used to represent a built-in SFR. The abbreviations listed in the table are
reserved words for the NEC assembler (RA78K4). The C compiler (CC78K4) allows
the abbreviations to be used as sfr variables with the #pragma sfr command.
R/W ................................. Indicates whether each SFR allows read and/or write operations.
R/W : Allows both read and write operations.
R
: Allows read operations only.
W
: Allows write operations only.
Manipulatable bits .......... Indicates the maximum number of bits that can be manipulated whenever an SFR is
manipulated. An SFR that supports 16-bit manipulation can be described in the sfrp
operand. For address specification, an even-numbered address must be speci-
fied.
An SFR that supports 1-bit manipulation can be described in a bit manipulation
instruction.
When reset ..................... Indicates the state of each register when RESET is applied.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| μPD784035 | 8/16 Bit Single Chip Microcontrollers(8/16 位微控制器) |
| μPD784038 | 8/16 Bit Single Chip Microcontrollers(8/16位單片微控制器) |
| μPD784037 | 8/16 Bit Single Chip Microcontrollers(8/16位單片微控制器) |
| μPD784038Y | 8/16 Bit Single Chip Microcontrollers(8/16 位微控制器) |
| μPD784046(A) | 16 Bit Single Chip Microcontrollers(16 位單片微控制器) |
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| PD784976A | 制造商:NEC 制造商全稱:NEC 功能描述:16-Bit Single-Chip Microcontroller |
| PD7869 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Optoelectronic |
| PD78F0134 | 制造商:NEC 制造商全稱:NEC 功能描述:8-Bit Single-Chip Microcontrollers |
| PD78F0134(A) | 制造商:NEC 制造商全稱:NEC 功能描述:8-Bit Single-Chip Microcontrollers |
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