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參數(shù)資料
| 型號(hào)： | MSM7630 |
| 廠商： | OKI SEMICONDUCTOR CO., LTD. |
| 英文描述： | Universal Speech Processor(通用語(yǔ)音處理器) |
| 中文描述： | 通用語(yǔ)音處理器（通用語(yǔ)音處理器） |
| 文件頁(yè)數(shù)： | 75/89頁(yè) |
| 文件大?。?/td> | 430K |
| 代理商： | MSM7630 |
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MSM7630
Semiconductor
75/89
(B)External operation
1) Verify that the input buffer full output (PIBF) is "0".
2) Drive the parallel input/output bus (PD[7:0]) with input data.
3) Set the strobe input (
PSTB
) to "1". This writes the data to the input buffer PIB.
4) When the input buffer full output (PIBF) becomes "1", stop driving the parallel input/output bus
and set the strobe input (
PSTB
) to "0".
5) Repeat the operation from step 1).
5.2.2 Data Output to External Device
(A) SCP operation
1) Write "01" to the PCMD (Command Register) PMOD bits. Also write "1" to PCMD’s POEN bit to
enable output operation.
2) Verify that the PSTS (Status Register) POST bit is "1", indicating that the output buffer POB is
empty.
3) Write data to the output buffer POB.
4) Write "0" to PSTS’s POST bit. When POST becomes "0", the output buffer full output (POBF) will
become "1".
5) If PSTS’s POST bit is "1" and output buffer full interrupts have been enabled (PCMD’s POIE bit
is "1"), then a PIO interrupt to the CPU core will be generated. This interrupt will be released by
writing "0" to PSTS’s POST bit or writing "0" to PCMD’s POIE bit.
6) Write data to the output buffer POB and repeat the operation from step 4).
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