参数资料
型号: 78070AY
厂商: NEC Corp.
英文描述: Common to 78K/0 Series
中文描述: 共同的78K / 0系列
文件页数: 27/129页
文件大小: 644K
代理商: 78070AY
27
CHAPTER 3 ADDRESSING
User's Manual U12326EJ4V0UM
15
0
Short direct memory
Effective
address
1
1
1
1
1
1
1
8
7
0
7
OP code
saddr-offset
α
When 8-bit immediate data is 20H to FFH,
α
= 0.
When 8-bit immediate data is 00H to 1FH,
α
= 1.
3.2.4 Short direct addressing
[Function]
The memory to be manipulated in the fixed space is directly addressed with 8-bit data in an instruction word.
This addressing is applied to the 256-byte fixed space FE20H to FF1FH. An internal high-speed RAM and
special function registers (SFRs) are mapped at FE20H to FEFFH and FF00H to FF1FH, respectively.
The SFR area (FF00H to FF1FH) where short direct addressing is applied is a part of the entire SFR area.
Ports that are frequently accessed in a program, a compare register of the timer/event counter and a capture
register of the timer/event counter are mapped in the area FF00H through FF1FH, and these SFRs can be
manipulated with a small number of bytes and clocks.
When 8-bit immediate data is at 20H to FFH, bit 8 of an effective address is set to 0. When it is at 00H to
1FH, bit 8 is set to 1. See
[Illustration]
below.
[Operand format]
Identifier
Description
saddr
Label or FE20H to FF1FH immediate data
saddrp
Label or FE20H to FF1FH immediate data (even address only)
[Description example]
MOV FE30H, #50H; When setting saddr to FE30H and the immediate data to 50H
[Illustration]
Instruction code
0
0
0
1
0
0
0
1
OP code
0
0
1
1
0
0
0
0
30H (saddr-offset)
0
1
0
1
0
0
0
0
50H (immediate data)
相关PDF资料
PDF描述
78075B Common to 78K/0 Series
78075BY Common to 78K/0 Series
78078 Common to 78K/0 Series
78078Y Common to 78K/0 Series
78083 Common to 78K/0 Series
相关代理商/技术参数
参数描述
78072 SL001 功能描述:4 (2 Pair Twisted) Conductor Multi-Pair Cable Slate 24 AWG 1000' (304.80m) 制造商:alpha wire 系列:EcoCable? Mini 零件状态:有效 电缆类型:多线对 导体数:4(2 对双绞线) 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:0.162"(4.11mm) 屏蔽类型:- 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,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:- 屏蔽范围:- 标准包装:1
78072 SL005 功能描述:4 (2 Pair Twisted) Conductor Multi-Pair Cable Slate 24 AWG 100.0' (30.5m) 制造商:alpha wire 系列:EcoCable? Mini 零件状态:有效 电缆类型:多线对 导体数:4(2 对双绞线) 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:0.162"(4.11mm) 屏蔽类型:- 长度:100.0'(30.5m) 套管颜色:瓦色 等级:ISO 10993,UL 式 21460 特性:生物相容性,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:- 屏蔽范围:- 标准包装:1
780722 制造商:JO-EL Electric 功能描述:Bulk
78073 SL001 功能描述:6 (3 Pair Twisted) Conductor Multi-Pair Cable Slate 24 AWG 1000' (304.80m) 制造商:alpha wire 系列:EcoCable? Mini 零件状态:有效 电缆类型:多线对 导体数:6(3 对双绞线) 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:0.172"(4.37mm) 屏蔽类型:- 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,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:- 屏蔽范围:- 标准包装:1
78073 SL005 功能描述:6 (3 Pair Twisted) Conductor Multi-Pair Cable Slate 24 AWG 100.0' (30.5m) 制造商:alpha wire 系列:EcoCable? Mini 零件状态:有效 电缆类型:多线对 导体数:6(3 对双绞线) 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:0.172"(4.37mm) 屏蔽类型:- 长度:100.0'(30.5m) 套管颜色:瓦色 等级:ISO 10993,UL 式 21460 特性:生物相容性,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:- 屏蔽范围:- 标准包装:1