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数据搜索系统，热门电子元器件搜索 |
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数据搜索系统，热门电子元器件搜索 |
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ZUSBOPTSC01ZAC 数据表(PDF) 273 Page - Zilog, Inc. |
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ZUSBOPTSC01ZAC 数据表(HTML) 273 Page - Zilog, Inc. |
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273 / 402 page  PS024604-1005 P R E L I M I N A R Y On-Chip Debugger Commands Z8FMC16100 Series Flash MCU Product Specification 251 Read Program Memory. The Read Program Memory command reads data from Program Memory. This command is equivalent to the LDC and LDCI instructions. Data can be read 1–65536 bytes at a time (65536 bytes can be read by setting size to 0). If the device is not in DEBUG mode or if the Read Protect option bit is enabled, this command returns FFh for the data. DBG ← 0Bh DBG ← Program Memory Address[15:8] DBG ← Program Memory Address[7:0] DBG ← Size[15:8] DBG ← Size[7:0] DBG → 1-65536 data bytes Write Data Memory. The Write Data Memory command writes data to Data Memory. This command is equivalent to the LDE and LDEI instructions. Data can be written 1– 65536 bytes at a time (65536 bytes can be written by setting size to 0). If the device is not in DEBUG mode or if the Read Protect option bit is enabled, the data is discarded. DBG ← 0Ch DBG ← Data Memory Address[15:8] DBG ← Data Memory Address[7:0] DBG ← Size[15:8] DBG ← Size[7:0] DBG ← 1-65536 data bytes Read Data Memory. The Read Data Memory command reads from Data Memory. This command is equivalent to the LDE and LDEI instructions. Data can be read 1–65536 bytes at a time (65536 bytes can be read by setting size to 0). If the device is not in DEBUG mode, this command returns FFh for the data. DBG ← 0Dh DBG ← Data Memory Address[15:8] DBG ← Data Memory Address[7:0] DBG ← Size[15:8] DBG ← Size[7:0] DBG → 1-65536 data bytes Read Program Memory CRC. The Read Program Memory CRC command computes and returns the CRC (cyclic redundancy check) of Program Memory using the 16-bit CRC- CCITT polynomial (x16 + x12 + x5 + 1). The CRC is preset to all 1s. The least-significant bit of the data is shifted through the polynomial first. The CRC is inverted when it is trans- mitted. If the device is not in DEBUG mode, this command returns FFFFh for the CRC value. Unlike most other OCD Read commands, there is a delay from issuing of the com- mand until the OCD returns the data. The OCD reads the Program Memory, calculates the |
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