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參數(shù)資料
| 型號： | P80CL410 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | Low voltage 8-bit microcontrollers with I2C-bus |
| 中文描述： | 低電壓的8位微控制器帶有I2C總線 |
| 文件頁數(shù)： | 12/60頁 |
| 文件大小： | 266K |
| 代理商： | P80CL410 |
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1997 Apr 10
12
Philips Semiconductors
Product specification
Low voltage 8-bit microcontrollers with
I
2
C-bus
P80CL410; P83CL410
Fig.6 The lower 128 bytes of internal RAM.
handbook, halfpage
MLA560 - 1
R7
R0
07H
0
R7
R0
0FH
08H
R7
R0
17H
10H
R7
R0
1FH
18H
2FH
7FH
20H
30H
bit-addressable space
(bit addresses 0 to 7F)
4 banks of 8 registers
(R0 to R7)
9.3
Special Function Registers (SFRs)
The upper 128 bytes are the address locations of the
SFRs. Figure 7 shows the SFR space. The SFRs include
the port latches, timers, peripheral control, serial I/O
registers, etc. These registers can only be accessed by
direct addressing. There are 128 directly addressable
locations in the SFR address space (SFRs with addresses
divisible by eight).
9.4
Addressing
The P8xCL410 has five methods for addressing source
operands:
Register
Direct
Register-indirect
Immediate
Base-register plus index-register-indirect.
The first three methods can be used for addressing
destination operands. Most instructions have a
‘destination/source’ field that specifies the data type,
addressing methods and operands involved.
For operations other than MOVs, the destination operand
is also a source operand.
Access to memory addressing is as follows:
Registers in one of the four register banks through
register, direct or register-indirect
Internal RAM (128 bytes) through direct or
register-indirect
Special Function Registers through direct
External data memory through register-indirect
Program Memory look-up tables through base-register
plus index-register-indirect.
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