Datasheet 搜索 > 微控制器 > Microchip（微芯） > PIC16F628-20I/SO 数据手册 > PIC16F628-20I/SO 用户编程技术手册 4/22 页
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PIC16F628-20I/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 PIC16F628-20I/SO 微控制器, 8位, 闪存, PIC16F, 20 MHz, 3.5 KB, 224 Byte, 18 引脚, SOIC
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PIC16F628-20I/SO数据手册
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PIC16F62X
DS30034D-page 4 Preliminary 2002 Microchip Technology Inc.
2.3 Program/Verify Mode
The programming module operates on simple com-
mand sequences entered in serial fashion with the data
being latched on the failing edge of the clock pulse. The
sequences are entered serially, via the clock and data
lines, which are Schmitt Trigger in this mode. The gen-
eral 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 the data pin is required to have a
minimum setup and hold time (see AC/DC specifica-
tions), with respect to the falling edge of the clock.
Commands that have data associated with them (read
and load), require a minimum delay of Tdly1 between
the command and the data.
The 6-bit command sequences are shown in Table 2-1.
TABLE 2-1: COMMAND MAPPING FOR PIC16F627/PIC16F628
Command Mapping (MSb … LSb) Data
Load Configuration XX0000 0, data (14), 0
Load Data for Program Memory XX0010 0, data (14), 0
Load Data for Data Memory XX0011 0, data (8), zero (6), 0
Increment Address XX0110
Read Data from Program Memory XX0100 0, data (14), 0
Read Data from Data Memory XX0101 0, data (8), zero (6), 0
Begin Erase/Programming Cycle 001000
Begin Programming Only Cycle 011000
Bulk Erase Program Memory XX1001
Bulk Erase Data Memory XX1011
Bulk Erase Setup 1 000001
Bulk Erase Setup 2 000111
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