參數(shù)資料
型號: UPD784215AYGF
廠商: NEC Corp.
英文描述: 16-BIT SINGLE-CHIP MICROCONTROLLERS
中文描述: 16位單晶片微控制器
文件頁數(shù): 56/100頁
文件大小: 561K
代理商: UPD784215AYGF
Data Sheet U14121EJ2V0DS00
56
μ
PD784214A, 784215A, 784216A, 784217A, 784218A, 784214AY, 784215AY, 784216AY, 784217AY, 784218AY
8.4 Macro Service
This function is to transfer data between memory and a special function register (SFR) without intervention by the
CPU. A macro service controller accesses the memory and SFR in the same transfer cycle and directly transfers
data without loading it.
Because this function does not save or restore the status of the CPU, or load data, data can be transferred at high
speeds.
Figure 8-2. Macro Service
CPU
Memory
SFR
Macro service
controller
Read
Write
Write
Read
Internal bus
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