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HC705V8GRS/D Scheda tecnica(PDF) 104 Page - NXP Semiconductors

Il numero della parte HC705V8GRS/D
Spiegazioni elettronici  The Motorola MC68HC705V8 microcontroller is a custom HC05 based MCU featuring a Message Data Link Controller (MDLC) module and on-chip power regulation.
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Produttore elettronici  NXP [NXP Semiconductors]
Homepage  http://www.nxp.com
Logo NXP - NXP Semiconductors

HC705V8GRS/D Scheda tecnica(HTML) 104 Page - NXP Semiconductors

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SECTION 14: SERIAL PERIPHERAL INTERFACE
Page 93
MC68HC705V8 Specification Rev. 2.1
Figure 14-3:
Serial Peripheral Interface Master-Slave Interconnection
14.3
SPI REGISTERS
There are three registers in the SPI which provide control, status, and data storage
functions. These registers are called the serial control register (SPCR), serial peripheral
status register (SPSR), and serial peripheral data I/O register (SPDR) and are described in
the following paragraphs.
14.3.1
Serial Peripheral Control Register (SPCR)
Figure 14-4:
SPI Control Register (SPCR)
SPIE - Serial Peripheral Interrupt Enable
0 = SPIF interrupts disabled
1 = SPI interrupt is SPIF=1
SPE - Serial Peripheral System Enable
0 = SPI system off
1 = SPI system on. Port F becomes SPI pins. SS is a special case. See 9.4
PORT F for additional information.
MSTR - Master Mode Select
0 = Slave mode
1 = Master mode
8-BIT SHIFT REGISTER
8-BIT SHIFT REGISTER
MISO
MOSI
MISO
MOSI
SPI CLOCK
GENERATOR
SCK
SCK
SLAVE
MASTER
SS
SS
V
DD
SPIE
—
MSTR
CPOL
CPHA
SPR1
SPR0
SPE
$0A
0
0001
U
U
0
RESET:
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com



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