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| 型號(hào)： | MC68F375BGMVR33R |
| 廠商： | Freescale Semiconductor |
| 文件頁數(shù)： | 498/616頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC MPU 32BIT 33MHZ 217-PBGA |
| 標(biāo)準(zhǔn)包裝： | 500 |
| 系列： | M683xx |
| 處理器類型： | M683xx 32-位 |
| 速度： | 33MHz |
| 電壓： | 5V |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 217-BBGA |
| 供應(yīng)商設(shè)備封裝： | 217-PBGA（23x23） |
| 包裝： | 帶卷 (TR) |
MC68F375
TPU ROM FUNCTIONS
MOTOROLA
REFERENCE MANUAL
Rev. 25 June 03
D-33
D.13 Output Compare (OC)
The output compare (OC) function generates a rising edge, falling edge, or a toggle of
the previous edge in one of three ways:
1. Immediately upon CPU initiation, thereby generating a pulse with a length equal
to a programmable delay time
2. At a programmable delay time from a user-specified time
3. Continuously. Upon receiving a link from a channel, OC references, without
CPU interaction, a specifiable period and calculates an offset:
where RATIO is a parameter supplied by the user.
This algorithm generates a 50% duty-cycle continuous square wave with each high/
low time equal to the calculated OFFSET. Due to offset calculation, there is an initial
link time before continuous pulse generation begins.
Figure D-22 shows the host interface areas and parameter RAM for the OC function.
Offset
Period
Ratio
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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