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參數(shù)資料
| 型號： | TC9447F |
| 元件分類： | 消費家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP100 |
| 封裝： | 14 X 20 MM, 0.65 MM PITCH, PLASTIC, QFP-100 |
| 文件頁數(shù)： | 7/44頁 |
| 文件大?。?/td> | 990K |
| 代理商： | TC9447F |
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TC9447F
2002-02-05
15
(3-3) Monitor mode
Monitor mode is used to monitor the data bus or pointers.
There are two further modes: a mode where the data bus or pointer (s) is monitored at a preset
program counter (PC) and a mode where a loop counter (LC) is added to monitor conditions in
addition to the PC.
First, issue the monitoring command, which has no data.
When the TC9447F loads data to the IFDO register (IFDOR), the IFOK pin signal is set to Low
(see (1) above).
Next, the I2C read command (ID = 33h) is issued, then when the IFCK signal is sent, the data are
output on the IFCK signal falling edge starting from the MSB. The data length is at its maximum
(24 bits or three bytes) during monitoring of the data bus. In cases where transfer must be
interrupted, such as where only eight or 16 bits of the MSB side are required, monitoring can be
interrupted by sending the I2C end condition (set data level to H while the clock = H).
After issuing a monitor command (50h~56h), be sure to perform a continuous read operation by
issuing the I2C read command (ID = 33h).
(3-4) MCU does not write data by ACMP mode at I2C bus controlling.
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