参数资料
型号: M306V8FJFP
元件分类: 微控制器/微处理器
英文描述: 16-BIT, FLASH, 16 MHz, MICROCONTROLLER, PQFP116
封装: 20 X 20 MM, 0.65 MM PITCH, PLASTIC, LQFP-116
文件页数: 28/77页
文件大小: 2650K
代理商: M306V8FJFP
M306V8FJFP
Rev.1.31
Apr 18, 2005
page 32 of 363
REJ03B0082-0131
Bus
During memory expansion or microprocessor mode, some pins serve as the bus control pins to perform
_______
data input/output to and from external devices. These bus control pins include A0 to A19, D0 to D15, CS0 to
_______
_____
________ ______
________ ________
________ __________
_________
CS3, RD, WRL/WR, WRH/BHE, ALE, RDY, HOLD, HLDA and BCLK.
Bus Mode
The bus mode, either multiplexed or separate, can be selected using the PM05 to PM04 bits in the PM0
register.
Separate Bus
In this bus mode, data and address are separate.
Multiplexed Bus
D0 to D7 and A1 to A8 are multiplexed. D8 to D15 are not multiplexed. Do not use D8 to D15.
External buses connecting to a multiplexed bus are allocated to only the even addresses of the micro-
computer. Odd addresses cannot be accessed.
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