參數(shù)資料
型號(hào)： EM78P451
英文描述： Dual Advanced Synchronous Rectified Buck MOSFET Drivers with Protection Features; Temperature Range: 0&degC to 70°C; Package: 16-QFN
中文描述： 8位微控制器的通用產(chǎn)品[英文]
文件頁(yè)數(shù)： 10/52頁(yè)
文件大?。?/td> 1287K
代理商： EM78P451
EM78P451
OTP ROM
This specification is subject to change without prior notice.
2002/03/01
18
PDRD
Q
CLK
D
P
R
C
L
PCWR
PDWR
Q
CLK
D
P
R
C
L
0
1
M
U
X
IOD
ROC
VCC
Weakly
Pull-up
PORT
Rex*
*The Rex is 560K ohm external resistor
PCRD
Fig.7(b) The Circuit of I/O Port with R-option (P80, P81)
4.5 SERIAL PERIPHERAL INTERFACE MODE
1. Overview & Features
Overview:
Figures 8, 9, and 10 show how EM78P451 communicates with other devices through SPI module.
If EM78P451 is a master controller, it sends clock through the SCK pin. A couple of 8-bit data are
transmitted and received at the same time. However, if EM78P451is defined as a slave, its SCK
pin could be programmed as an input pin. Data will continue to be shifted based on both the clock
rate and the selected edge.
Features:
Operation in either Master mode or Slave mode,
Three-wire or four-wire synchronous communication; that is, full duplex
Programmable baud rates of communication,
Programming clock polarity, (RD bit7)
Interrupt flag available for the read buffer full,
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