參數(shù)資料
型號: MC68HC05P9AVDW
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDSO28
封裝: SOIC-28
文件頁數(shù): 18/158頁
文件大小: 3885K
代理商: MC68HC05P9AVDW
SIOP
114
SIOP
SIOP Status
Register
The read-only SIOP status register (SSR) contains two bits. One bit
indicates that a SIOP transfer is complete, and the other indicates that
an invalid access of the SIOP data register occurred while a transfer was
in progress.
SPIF — Serial Peripheral Interface Flag
This clearable, read-only bit is set automatically on the eighth rising
edge on the PB7/SCK pin and indicates that a data transmission took
place. SPIF does not inhibit further transmissions. Clear SPIF by
reading the SIOP status register while SPIF is set and then reading or
writing the SIOP data register. Reset clears SPIF.
1 = Transmission complete
0 = Transmission not complete
$000B
Bit 7
654321
Bit 0
Read:
SPIF
DCOL
000000
Write:
Reset:
00000000
= Unimplemented
Figure 65. SIOP Status Register (SSR)
16-mc68hc05p9a
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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