參數(shù)資料
型號: MC68HC05CT4FN
廠商: MOTOROLA INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 2.048 MHz, MICROCONTROLLER, PQCC44
封裝: PLASTIC, LCC-44
文件頁數(shù): 117/142頁
文件大小: 624K
代理商: MC68HC05CT4FN
NON-DISCLOSURE
AGREEMENT
REQUIRED
Synchronous Serial Interface (SSI)
General Release Specification
MC68HC05CT4 Rev. 2.0
76
Synchronous Serial Interface (SSI)
MOTOROLA
9.4.3 SSI Data Register
This register is located at address $001D and is both the transmit and
receive data register. This system is not double buffered, but any writes
to this register during transfers are masked and will not destroy the
previous contents. The SDR can be read at any time, but, if a transfer is
in progress the results may be ambiguous. The contents of this register
could be altered whenever the CPOL bit is altered. This register should
be written to only upon completion of a transfer, after the SF flag has
been cleared. Otherwise, the new data will not be stored.
For an SSI configured as a master, to initiate a transfer, the data register
write must occur after the SSI is enabled.
9.5 Operation During Wait Mode
The CPU clock halts during wait mode, but the SSI remains active. If
interrupts are enabled, an SSI interrupt will cause the processor to exit
wait mode.
9.6 Operation During Stop Mode
In stop mode, the SSI halts operation. The SDIO and SCK pins will
maintain their states.
If the SSI is nearing completion of a transfer when the stop mode is
entered, it might be possible for the SSI to generate an interrupt request
and thus cause the processor immediately to exit stop mode. To prevent
Address:
$001D
Bit 7
654321
Bit 0
Read:
Write:
Reset:
UUUUUUUU
Figure 9-5. SSI Data Register (SDR)
相關PDF資料
PDF描述
MC68HC05J1P 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDIP20
MC68HC05J1CDW 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDSO20
MC68HC05J1DW 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDSO20
MC68HC05J1CP 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDIP20
MC68HC05JB4DWR2 8-BIT, MROM, 3 MHz, MICROCONTROLLER, PDSO28
相關代理商/技術參數(shù)
參數(shù)描述
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
MC68HC05E16 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:16256 bytes of user ROM, 320bytes of EPROM and 352 bytes of RAM
MC68HC05E16/D 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:16256 bytes of user ROM, 320bytes of EPROM and 352 bytes of RAM