參數(shù)資料
型號: MC68HC705P6ACP
廠商: MOTOROLA INC
元件分類: 微控制器/微處理器
英文描述: HCMOS Microcontroller Unit
中文描述: 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PDIP28
封裝: PLASTIC, DIP-28
文件頁數(shù): 86/130頁
文件大小: 1541K
代理商: MC68HC705P6ACP
EPROM
Advance Information
MC68HC705P6A
Rev. 2.0
86
EPROM
MOTOROLA
To program a byte of EPROM, manipulate the EPROG register as
follows:
1.
Set the ELAT bit in the EPROG register.
2.
Write the desired data to the desired EPROM address.
3.
Set the EPGM bit in the EPROG register for the specified
programming time, tEPGM.
Clear the ELAT and EPGM bits in the EPROG register.
4.
This sequence is also shown in the sample program listing in
Table 10-1
.
10.7 EPROM Bootloader
Three port pins are associated with bootloader control functions: PC3,
PC4, and PC6.
Table 10-2
summarizes their functionality.
Table 10-1. EPROM Programming Routine
001C
0055
0700
0000
EPROG
DATA
EPROM
EPGM
EQU $1C
EQU $55
EQU $700
EQU $00
PROGRAMMING REG
DATA VALUE
A SAMPLE EPROM ADX
EPGM BIT IN EPROG REG
00D0
ORG
$D0
00D0
00D2
00D4
00D6
00D9
00DB
00DD
00DF
A6 02
B7 1C
A6 55
C7 07 00
10 1C
AD 03
3F 1C
81
LDA
STA
LDA
STA
BSET
BSR
CLR
RTS
#$04
EPROG
#DATA
EPROM
EPGM, EPROG
DELAY
EPROG
SET LAT BIT IN EPROG
DATA BYTE
WRITE IT TO EPROM LOC
TURN ON PGM VOLTAGE
WAIT 4 ms MINIMUM
CLR LAT AND PGM BITS
Table 10-2. Bootloader Control Pins
PC6
PC4
PC3
Mode
1
1
1
Program/verify
1
1
0
Verify only
1
0
0
Dump MCU EPROM to port A
相關PDF資料
PDF描述
MC68HC912D60A Microcontrollers
MC68HC912D60C Microcontrollers
MC68HC912D60P Microcontrollers
MC68VZ328P Integrated Portable System Processor Product Brief
MC74AC14DR2 Hex Inverter Schmitt Trigger
相關代理商/技術參數(shù)
參數(shù)描述
MC68HC705P6ADW 制造商:Rochester Electronics LLC 功能描述:MCU, 176 BYTES RAM, A/D - Bulk
MC68HC705P6AMDW 功能描述:IC MCU 4.6K OTP 2.1MHZ 28-SOIC RoHS:否 類別:集成電路 (IC) >> 嵌入式 - 微控制器, 系列:HC05 標準包裝:250 系列:56F8xxx 核心處理器:56800E 芯體尺寸:16-位 速度:60MHz 連通性:CAN,SCI,SPI 外圍設備:POR,PWM,溫度傳感器,WDT 輸入/輸出數(shù):21 程序存儲器容量:40KB(20K x 16) 程序存儲器類型:閃存 EEPROM 大小:- RAM 容量:6K x 16 電壓 - 電源 (Vcc/Vdd):2.25 V ~ 3.6 V 數(shù)據(jù)轉換器:A/D 6x12b 振蕩器型:內部 工作溫度:-40°C ~ 125°C 封裝/外殼:48-LQFP 包裝:托盤 配用:MC56F8323EVME-ND - BOARD EVALUATION MC56F8323
MC68HC705P6AMP 制造商:Rochester Electronics LLC 功能描述:- Bulk
MC68HC705P6CDW 制造商:Motorola Inc 功能描述:
MC68HC705P6CP 制造商:Freescale Semiconductor 功能描述: 制造商:Motorola Inc 功能描述: