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GMS81C2112 Datasheet(PDF) 65 Page - Hynix Semiconductor

No. de Pieza. GMS81C2112
Descripción  HYNIX SEMICONDUCTOR 8-BIT SINGLE-CHIP MICROCONTROLLERS
Descarga  107 Pages
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Fabricante  HYNIX [Hynix Semiconductor]
Página de inicio  http://www.skhynix.com/ko/index.jsp
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GMS81C2112 Datasheet(HTML) 65 Page - Hynix Semiconductor

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GMS81C2112/GMS81C2120
JUNE. 2001 Ver 1.00
59
14. SERIAL PERIPHERAL INTERFACE
The Serial Peripheral Interface (SPI) module is a serial in-
terface useful for communicating with other peripheral of
microcontroller devices. These peripheral devices may be
serial EEPROMs, shift registers, display drivers, A/D con-
verters, etc. The Serial Peripheral Interface(SPI) is 8-bit
clock synchronous type and consists of serial I/O register,
serial I/O mode register, clock selection circuit octal
counter and control circuit. The SOUT pin is designed to
input and output. So Serial Peripheral Interface(SPI) can
be operated with minimum two pin
Figure 14-1 SPI Block Diagram
÷ 4
÷ 16
XIN PIN
MUX
SCK[1:0]
00
01
10
11
SCLK PIN
SPI
Shift
Input shift register
SIOR
Clock
Clock
Octal
Serial communication
Interrupt
SIOIF
SOUT
Internal Bus
SIOSF
Counter
SCK[1:0]
“11”
overflow
not “11”
Complete
Timer0
Overflow
IOSWIN
SIN PIN
IOSW
PIN
SOUT
IOSWIN
CONTROL
CIRCUIT
“0”
“1”
POL
1
0
Start
SIOST


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