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参数资料
| 型号： | TSC8051C1XXX-16CEB |
| 元件分类： | 8位微控制器 |
| 英文描述： | 8-Bit Microcontroller for Digital Computer Monitors |
| 中文描述： | 8位数字的电脑显示器微控制器 |
| 文件页数： | 2/31页 |
| 文件大小： | 321K |
| 代理商： | TSC8051C1XXX-16CEB |
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TSC8051C1
Rev. D (14 Jan. 97)
10
MATRA MHS
6.7. Memory organization
The memory organisation of the TSC8051C1 is the same
as in the 80C51, with the exception that the TSC8051C1
has 8k bytes ROM, 256 bytes RAM, and additional
SFRs. Details of the differences are given in the
following paragraphs.
In the TSC8051C1, the lowest 8k of the 64k program
memory address space is filled by internal ROM.
Depending on the package used, external access is
available or not. By tying the EA pin high, the processor
fetches instructions from internal program ROM. Bus
expansion for accessing program memory from 8k
upward is automatic since external instruction fetches
occur automatically when the program counter exceeds
1FFFh. If the EA pin is tied low, all program memory
fetches are from external memory. The execution speed
is the same regardless of whether fetches are from
external or internal program memory. If all storage is
on–chip, then byte location 1FFFh should be left vacant
to prevent an undesired pre–fetch from external program
memory address 2000h.
Certain locations in program memory are reserved for
specific purposes. Locations 0000h to 0002h are
reserved for the initialisation program. Following reset,
the CPU always begins execution at location 0000h.
Locations 0003h to 0032h are reserved for the six
interrupt request service routines.
The internal data memory space is divided into a
256–bytes internal RAM address space and a 128 bytes
special function register address space.
The internal data RAM address space is 0 to FFh. Four
8–bit register banks occupy locations 0 to 1Fh. 128 bit
locations of the internal data RAM are accessible
through direct addressing. These bits reside in 16 bytes
of internal RAM at location 20h to 2Fh. The stack can
be located anywhere in the internal data RAM address
space by loading the 8–bit stack pointer (SP SFR).
The SFR address space is 100h to 1FFh. All registers
except the program counter and the four 8–bit register
banks reside in this address space. Memory mapping of
the SFRs allows them to be accessed as easily as internal
RAM, and as such, they can be operated on by most
instructions.The mapping in the SFR address space of
the 43 SFRs is shown in Table 2. The SFR names in
italic are TSC8051C1 new SFRs and are described in
Peripherals Functional Description section. The SFR
names in bold are bit addressable.
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| TSC8051C1XXX-16CED | 8-Bit Microcontroller for Digital Computer Monitors |
| TSC8051C1XXX-16CER | 8-Bit Microcontroller for Digital Computer Monitors |
| TSC8051C1XXX-16IBR | 8-Bit Microcontroller for Digital Computer Monitors |
| TSC8051C1XXX-16IDR | 8-Bit Microcontroller for Digital Computer Monitors |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TSC8051C1XXX-16CED | 制造商:TEMIC 制造商全称:TEMIC Semiconductors 功能描述:8-Bit Microcontroller for Digital Computer Monitors |
| TSC8051C1XXX-16CER | 制造商:TEMIC 制造商全称:TEMIC Semiconductors 功能描述:8-Bit Microcontroller for Digital Computer Monitors |
| TSC8051C1XXX-16CGB | 制造商:TEMIC 制造商全称:TEMIC Semiconductors 功能描述:8-Bit Microcontroller for Digital Computer Monitors |
| TSC8051C1XXX-16CGD | 制造商:TEMIC 制造商全称:TEMIC Semiconductors 功能描述:8-Bit Microcontroller for Digital Computer Monitors |
| TSC8051C1XXX-16CGR | 制造商:TEMIC 制造商全称:TEMIC Semiconductors 功能描述:8-Bit Microcontroller for Digital Computer Monitors |
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