參數(shù)資料
型號: UPD78365A
廠商: NEC Corp.
英文描述: 16/8-BIT SINGLE-CHIP MICROCONTROLLERS
中文描述: 16/8-BIT單晶片微控制器
文件頁數(shù): 29/96頁
文件大?。?/td> 502K
代理商: UPD78365A
μ
PD78363A, 78365A, 78366A, 78368A
29
3.
FUNCTIONAL BLOCKS
3.1
EXECUTION UNIT (EXU)
EXU controls address computation, arithmetic and logical operations, and data transfer through microprogram.
EXU has an internal main RAM. This RAM can be accessed by instructions faster than the peripheral RAM.
3.2
BUS CONTROL UNIT (BCU)
BCU starts necessary bus cycles according to the physical address obtained by the execution unit (EXU).If
EXU does not request start of the bus cycle, an address is generated to prefetch an instruction. The prefetched
op code is stored in an instruction queue.
3.3
ROM/RAM
The internal ROM and RAM capacities differ depending on the product.
The
μ
PD78363A has a 24-KB ROM and a 512-B peripheral RAM. The
μ
PD78366A has a 32-KB ROM and
a 1792-B peripheral RAM. The
μ
PD78368A has a 48-KB ROM and a 1792-B peripheral RAM. The
μ
PD78365A
does not have a ROM and only has a 1792-B peripheral RAM.
Access to the ROM can be disabled by using the MODE0 and MODE1 pins, in which case an external memory
of 64 KB can be accessed.
相關(guān)PDF資料
PDF描述
UPD78366A 16/8-BIT SINGLE-CHIP MICROCONTROLLERS
UPD78366AGF 16/8-BIT SINGLE-CHIP MICROCONTROLLERS
UPD78368A 16/8-BIT SINGLE-CHIP MICROCONTROLLERS
UPD78368AGF 16/8-BIT SINGLE-CHIP MICROCONTROLLERS
UPD78363AGF 16/8-BIT SINGLE-CHIP MICROCONTROLLERS
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