參數(shù)資料
型號: μPD784035
廠商: NEC Corp.
英文描述: 8/16 Bit Single Chip Microcontrollers(8/16 位微控制器)
中文描述: 8 / 16位單片機(jī)微控制器(8 / 16位微控制器)
文件頁數(shù): 45/98頁
文件大?。?/td> 650K
代理商: ΜPD784035
45
μ
PD784035, 784036, 784037, 784038
(1) Three-wire serial I/O mode
This mode is designed for communication with a device incorporating a conventional synchronous serial interface.
Basically, three lines are used for communication: the serial clock line (SCK0) and serial data lines (SI0 and SO0).
In general, a handshake line is required to check the communication state.
(2) Two-wire serial I/O mode
In this mode, 8-bit data is transferred using two lines: the serial clock line (SCL) and serial data bus (SDA).
In general, a handshake line is required to check the communication state.
8.9 Clock Output Function
The frequency of the CPU clock signal can be divided for output to a point external to the system. Moreover, the
port can be used as a 1-bit port.
The ASTB pin is also used for the CLKOUT pin, so that when this function is used, the local bus interface cannot
be used.
Figure 8-13. Block Diagram of Clock Output Function
CLKOUT
f
CLK
f
CLK
/2
f
CLK
/4
f
CLK
/8
f
CLK
/16
S
Output control
Enable output
Output level
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