參數(shù)資料
型號: μPD705100
廠商: NEC Corp.
英文描述: 32 Bit Microprocessor(32 位微處理器)
中文描述: 32位微處理器(32位微處理器)
文件頁數(shù): 63/81頁
文件大小: 441K
代理商: ΜPD705100
63
CHAPTER 6 INTERRUPTS
Figure 6-1. Reset
First BCYST
BCLK (input)
RESET (input)
BCYST (output)
T
WRL
Note
Note
The minimum value of T
WRL
(the period during which the RESET remains low) depends on the
following states:
At power-on or upon return from a stop state (with a STBY instruction)
: 10 ms (oscillation settling time of external oscillator + PLL oscillation settling time of V830)
When normal (other than the above)
: 20 clock pulses
The following lists the pin states existing immediately after a reset operation.
Table 6-2. Pin States Immediately After Reset
Pin
Pin state
D0-D31
High impedance
A31/CS3
High level
A30/CS2
A29/CS1
A28/CS0
A3-A27
BE3/A1
BE2/BH
BE1,BE0
ST0-ST3
R/W
BCYST
HLDAK
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