参数资料
型号: M30201F4T-FP
元件分类: 微控制器/微处理器
英文描述: 16-BIT, FLASH, 10 MHz, MICROCONTROLLER, PQFP56
封装: PLASTIC, QFP-56
文件页数: 44/158页
文件大小: 1633K
代理商: M30201F4T-FP
138
Appendix Parallel I/O Mode
Preliminary
Under
development
Mitsubishi microcomputers
M30201 Group
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
The following explains about bus operation modes, software commands, and status register.
Bus Operation Modes
Read-only mode is entered by applying VPPH to the CNVSS pin and a low voltage to the VRFY pin.
Read-only mode has three states: Read, Output Disable, and Standby which are selected by
_____
______
setting the CE, OE, and WE pins high or low.
Read-write mode is entered by applying VPPH to the CNVSS pin and a high voltage to the VRFY pin.
Read-write mode has four states: Read, Output Disable, Standby, and Write which are selected by
_____
______
setting the CE, OE, and WE pins high or low.
Read
______
_____
The Read mode is entered by pulling the WE pin high when the CE and OE pins are low. In Read
mode, the data corresponding to each software command entered is output from the data I/O pins
D0–D7.
Output Disable
_____
The Output Disable mode is entered by pulling the CE pin low and the WE and OE pins high. Also,
the data I/O pins are placed in the high-impedance state.
Standby
_____
The Standby mode is entered by driving the CE pin high. Also, the data I/O pins are placed in the
high-impedance state.
Write
The Write mode is entered by applying VPPH to the CNVSS pin and a high voltage to the VRFY pin
_____
and then pulling the WE pin low when the CE pin is low and OE pin is high. In this mode, the device
accepts the software commands or write data entered from the data I/O pins. A program, erase, or
some other operation is initiated depending on the content of the software command entered here.
_____
The input data such as address is latched at the falling edge of WE pin. The input data such as
_____
software command is latched at the rising edge of WE pin.
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