参数资料
型号: 784217AY
厂商: NEC Corp.
英文描述: MOS INTEGRATED CIRCUIT
中文描述: 马鞍山集成电路
文件页数: 31/100页
文件大小: 564K
代理商: 784217AY
Data Sheet U14121EJ2V0DS00
31
μ
PD784214A, 784215A, 784216A, 784217A, 784218A, 784214AY, 784215AY, 784216AY, 784217AY, 784218AY
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6.2.3 Special function registers (SFRs)
The special function registers, such as the mode registers and control registers of the internal peripheral
hardware, are registers to which special functions are assigned. These registers are mapped to the 256-byte space
of addresses 0FF00H to 0FFFFH
Note
.
Note
On execution of the LOCATION 0H instruction. FFF00H to FFFFFH on execution of the LOCATION 0FH
instruction.
Caution Do not access an address in this area to which no SFR is assigned. If such an address is
accessed by mistake, the
μ
PD784218A may enter a deadlocked state. This deadlock state can be
cleared only by inputting the RESET signal.
Table 6-1 lists the special function registers (SFRs). The meanings of the symbols in this table are as follows.
Symbol ................................Symbol indicating an SFR. This symbol is reserved for NEC's assembler
(RA78K4). It can be used as an sfr variable by means of the #pragma sfr command
in the C compiler (CC78K4).
R/W .....................................Indicates whether the SFR is read-only, write-only, or read/write.
R/W: Read/write
R:
Read-only
W:
Write-only
Bit units for manipulation.....Bit units in which the value of the SFR can be manipulated.
SFRs that can be manipulated in 16-bit units can be described as the operand sfrp
of an instruction. To specify the address of this SFR, describe an even address.
SFRs that can be manipulated in 1-bit units can be described as the operand of a
bit manipulation instruction.
After reset............................Indicates the status of the register when the RESET signal has been input.
相关PDF资料
PDF描述
784218AY MOS INTEGRATED CIRCUIT
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相关代理商/技术参数
参数描述
784218A 制造商:NEC 制造商全称:NEC 功能描述:MOS INTEGRATED CIRCUIT
784218AY 制造商:NEC 制造商全称:NEC 功能描述:MOS INTEGRATED CIRCUIT
78423 SL001 功能描述:20 Conductor Multi-Conductor Cable Slate 24 AWG Foil, Braid 1000' (304.80m) 制造商:alpha wire 系列:EcoCable? Mini 零件状态:有效 电缆类型:多芯 导体数:20 线规:24 AWG 导线股数:19/36 导体材料:铜,镀锡 护套(绝缘)材料:聚苯醚(PPE) 护套(绝缘)直径:0.269"(6.83mm) 屏蔽类型:箔,编织线 长度:1000'(304.80m) 套管颜色:瓦色 等级:ISO 10993,UL 式 21460 特性:生物相容性,加蔽线,拉绳 电压:300V 工作温度:-40°C ~ 80°C 使用:- 导体绝缘:聚苯醚(PPE) 护套(绝缘)厚度:0.015"(0.39mm) 屏蔽材料:Suprashield?;铜,镀锡 屏蔽范围:1 标准包装:1
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784233 制造商:Belden Inc 功能描述: