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| 型号： | P8xCL580HFT |
| 厂商： | NXP Semiconductors N.V. |
| 英文描述： | Low voltage 8-bit microcontrollers with UART, I2C-bus and ADC |
| 中文描述： | 低电压8 - UART的，位微控制器的I2C总线和ADC |
| 文件页数： | 12/80页 |
| 文件大小： | 366K |
| 代理商： | P8XCL580HFT |
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1997 Mar 14
12
Philips Semiconductors
Product specification
Low voltage 8-bit microcontrollers with
UART, I
2
C-bus and ADC
P80CL580; P83CL580
Access to memory addressing is as follows:
Registers in one of the four register banks through
register, direct or register-indirect
Lower 128 bytes of internal RAM through direct or
register-indirect; upper 128 bytes of internal RAM
through direct
Special Function Registers through direct
External Data Memory through register-indirect
Program Memory look-up tables through base-register
plus index-register-indirect.
The P8xCL580 is classified as an 8-bit device since the
internal ROM, RAM, Special Function Registers,
Arithmetic Logic Unit and external data bus are all 8-bits
wide. It performs operations on bit, nibble, byte and
double-byte data types.
Facilities are available for byte transfer, logic and integer
arithmetic operations. Data transfer, logic and conditional
branch operations can be performed directly on Boolean
variables to provide excellent bit handling.
Fig.6 Memory map.
(1) Accessible via indirect addressing only.
(2) Accessible via direct and indirect addressing.
(3) Accessible via direct addressing.
handbook, full pagewidth
MGD676
(1)
(3)
(2)
255
127
0
EXTERNAL
(EA = 0)
INTERNAL
(EA = 1)
INTERNAL DATA MEMORY
EXTERNAL
DATA MEMORY
PROGRAM MEMORY
EXTERNAL
64 kbytes
64 kbytes
6 kbytes
6 kbytes
OVERLAPPED SPACE
0
6 kbytes
SPECIAL
FUNCTION
REGISTERS
INTERNAL
DATA RAM
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