Datasheet 搜索 > 微控制器 > Microchip（微芯） > PIC16F628A-I/SO 数据手册 > PIC16F628A-I/SO 用户编程技术手册 5/22 页
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PIC16F628A-I/SO 用户编程技术手册 - Microchip（微芯）
制造商:
Microchip（微芯）
分类:
微控制器
封装:
SOIC-18
描述:
MICROCHIP PIC16F628A-I/SO 微控制器, 8位, 闪存, PIC16F6xxx, 20 MHz, 3.5 KB, 224 Byte, 18 引脚, SOIC
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PIC16F628A-I/SO数据手册
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© 2007 Microchip Technology Inc. Preliminary DS41196G-page 5
PIC16F627A/628A/648A
2.4 Program/Verify Mode
The programming module operates on simple
command sequences entered in serial fashion with the
data being latched on the falling edge of the clock
pulse. The sequences are entered serially, via the clock
and data lines, which are Schmitt Trigger inputs in this
mode. The general form for all command sequences
consists of a 6-bit command and conditionally a 16-bit
data word. Both command and data word are clocked
LSb first.
The signal on pin DATA is required to have a minimum
setup and hold time (see AC/DC specifications), with
respect to the falling edge of the clock. Commands that
have data associated with them (Read and Load),
require a minimum delay of T
DLY1 between the
command and the data.
The 6-bit command sequences are shown in Table 2-3.
TABLE 2-3: COMMAND MAPPING FOR PIC16F627A/PIC16F628A/PIC16F648A
Command Mapping (MSb … LSb) Data
Load Configuration XX00000, data (14), 0
Load Data for Program Memory XX00100, data (14), 0
Load Data for Data Memory XX00110, data (8), zero (6), 0
Increment Address XX0110
Read Data from Program Memory XX01000, data (14), 0
Read Data from Data Memory XX01010, data (8), zero (6), 0
Begin Programming Only Cycle X01000
Bulk Erase Program Memory XX1001
Bulk Erase Data Memory XX1011
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