參數資料
型號: MB91V301CR-ESE1
元件分類: 微控制器/微處理器
英文描述: 32-BIT, 68 MHz, RISC MICROCONTROLLER, CPGA179
封裝: CERAMIC, PGA-179
文件頁數: 61/139頁
文件大?。?/td> 1482K
代理商: MB91V301CR-ESE1
MB91301 Series
28
Notes on during operation of PLL clock mode
If the PLL clock mode is selected, the microcontroller attempt to be working with the self-oscillating circuit even
when there is no external oscillator or external clock input is stopped. Performance of this operation, however,
cannot be guaranteed.
Clock control block
For L-level input to the INIT pin, allow for the regulator settling time or oscillation settling time.
Bit search module
The 0-detection, 1-detection, and transition-detection data registers (BSD0, BSD1, and BSDC) are only word-
accessible.
I/O port access
Byte access only for access to port
Shared port function switching
To switch a pin that also serves as a port, use the port function register (PFR). Note, however, that bus pins are
switched depending on external bus settings.
D-bus memory
Do not set a code area in D-bus memory.
No instruction fetch is performed to the D-bus.
Instruction fetches to the D-bus area result in incorrect data interpreted as code, which can cause the micro-
controller to lose control.
Do not set a data area in I-bus memory.
X0
X1
MB91301 series
Using an external clock (normal)
Note: Stop mode (oscillation stop mode) can not be used.
X0
X1
OPEN
MB91301 series
Using an external clock (12.5 MHz Max)
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