參數(shù)資料
型號: MC68HC05C9EP
廠商: MOTOROLA INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDIP40
封裝: PLASTIC, DIP-40
文件頁數(shù): 144/144頁
文件大?。?/td> 1628K
代理商: MC68HC05C9EP
Serial Peripheral Interface (SPI)
SPI Registers
MC68HC05C9E
Advance Information
MOTOROLA
Serial Peripheral Interface (SPI)
99
N
O
N-D
I
SC
L
O
SU
R
E
AG
R
EEMENT
R
E
Q
U
IR
ED
10.6.3 Serial Peripheral Data I/O Register
The serial peripheral data I/O register (SPDR), shown in Figure 10-6, is
used to transmit and receive data on the serial bus. Only a write to this
register will initiate transmission/reception of another byte and this will
only occur in the master device. At the completion of transmitting a byte
of data, the SPIF status bit is set in both the master and slave devices.
When the user reads the serial peripheral data I/O register, a buffer is
actually being read. The first SPIF must be cleared by the time a second
transfer of the data from the shift register to the read buffer is initiated or
an overrun condition will exist. In cases of overrun, the byte which
causes the overrun is lost.
A write to the serial peripheral data I/O register is not buffered and places
data directly into the shift register for transmission.
Address:
$000C
Bit 7
6
54321
Bit 0
Read:
SPD7
SPD6
SPD5
SPD4
SPD3
SPD2
SPD1
SPD0
Write:
Reset:
Unaffected by reset
Figure 10-6. SPI Data Register (SPDR)
相關PDF資料
PDF描述
MC68HC05C9ECP 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDIP40
MC68HC05C9FB 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PQFP44
MC68HC05C9CB 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDIP42
MC68HC05C9FN 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PQCC44
MC68HC05C9CFN 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PQCC44
相關代理商/技術參數(shù)
參數(shù)描述
MC68HC05CT4FB 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:General Release Specification
MC68HC05CT4FN 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:General Release Specification
MC68HC05D9 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:8-bit microcomputer with PWM outputs and LED drive
MC68HC05E0 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:High-density complementary metal oxide semiconductor (HCMOS) microcontroller unit
MC68HC05E0FN 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller