參數資料
型號: M37902FGCHP
元件分類: 微控制器/微處理器
英文描述: 16-BIT, FLASH, 26 MHz, MICROCONTROLLER, PQFP100
封裝: 14 X 14 MM, 0.50 MM PITCH, PLASTIC, LQFP-100
文件頁數: 54/143頁
文件大小: 1148K
代理商: M37902FGCHP
M37902FCCHP, M37902FGCHP, M37902FJCHP
MITSUBISHI MICROCOMPUTERS
18
SHINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
Name
Program address register
Instruction queue buffer
Data address register
Data buffer
BIU structure
The BIU consists of four registers shown in Figure 11. Table 1 lists
the functions of each register.
Table 1. Functions of each register
Fig.11 Register structure of BIU
Functions
Indicates a storage address for an instruction to be next taken into an instruction queue buffer.
Temporarily stores an instruction which has been taken from a memory. Consists of 10 bytes.
Indicates an address where data will be next read from or written to.
Temporarily stores data which has been read from internal memory, internal peripheral devices, and
external areas by the BIU; or temporarily stores data which is to be written to internal memory, internal
peripheral devices, and external areas by the CPU. Consists of 32 bits.
PA
Q0
Q9
DA
DQ
b23
b0
b7
b0
b23
b0
b31
b0
Program address register
Instruction queue buffer
Data address register
Data buffer
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