参数资料
型号: MC68HC11C0MFN2
厂商: MOTOROLA INC
元件分类: 微控制器/微处理器
英文描述: 8-BIT, 2 MHz, MICROCONTROLLER, PQCC68
封装: PLASTIC, LCC-68
文件页数: 68/76页
文件大小: 394K
代理商: MC68HC11C0MFN2
MOTOROLA
MC68HC11C0
70
MC68HC11C0TS/D
SPIF — SPI Transfer Complete Flag
This flag is set when an SPI transfer is complete (after eight SCK cycles in a data transfer). Clear this
flag by reading SPSR, then access SPDR.
0 = No SPI transfer complete or SPI transfer still in progress
1 = SPI transfer complete
WCOL — Write Collision Error Flag
This flag is set if the MCU tries to write data into SPDR while an SPI data transfer is in progress. Clear
this flag by reading SPSR, then access SPDR.
0 = No write collision error
1 = SPDR written while SPI transfer in progress
Bit 5 — Not implemented
Always reads zero
MODF — Mode Fault (Mode fault terminates SPI operation)
Set when SS is pulled low while MSTR = 1. Cleared by SPSR read followed by SPCR write.
0 = No mode fault error
1 = SS pulled low in master mode
Bits [3:0] — Not implemented
Always read zero
SPI is double buffered in, single buffered out.
SPSR — Serial Peripheral Status Register
$0029
Bit 7
654321
Bit 0
SPIF
WCOL
MODF
————
RESET:
00000000
SPDR — SPI Data Register
$002A
Bit 7
654321
Bit 0
Bit 7
654321
Bit 0
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