参数资料
型号: MC68HC05SR3FB
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: 8-BIT, MROM, 2 MHz, MICROCONTROLLER, PQFP44
封装: QFP-44
文件页数: 73/96页
文件大小: 3143K
代理商: MC68HC05SR3FB
MC68HC05SR3
Freescale
10-3
OPERATING MODES
10
10.3
Bootstrap Mode
The Bootstrap mode is provided in the EPROM part (MC68HC705SR3) as a mean of
self-programming its EPROM with minimal circuitry. Bootstrap mode will be entered on the rising
edge of RESET when the VPP pin is at VTST (2×VDD) and PB1 pin is at VDD. Once in the bootstrap
mode, PB1 can then be used for other purposes. After entering the bootstrap mode, CPU
branches to the bootstrap program and carries out the EPROM programming routine. The user
EPROM consists of 3840 bytes, from location $1000 to $1EFF.
Refer to Appendix A for further details on MC68HC705SR3.
Table 10-2 Self-Check Report
D4
D3
D2
D1
REMARKS
Flashing
O.K. (self-check is on-going)
1
Bad port A
1
0
Bad port B
1
0
1
Bad port C
1
0
Bad port D
10
11
Bad RAM
10
Bad ROM
10
00
Bad SWI
01
11
Bad IRQ
1=LED on, 0=LED off
TPG
73
05SR3.Book Page 3 Thursday, August 4, 2005 1:08 PM
相关PDF资料
PDF描述
MC68HC05SR3CFB 8-BIT, MROM, 2 MHz, MICROCONTROLLER, PQFP44
MC68HC05T7B 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDIP56
MC68HC05V12CFNR2 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PQCC68
MC68HC08AS20FNR2 8-BIT, MROM, MICROCONTROLLER, PQCC52
MC68HC08AS20VFNR2 8-BIT, MROM, MICROCONTROLLER, PQCC52
相关代理商/技术参数
参数描述
MC68HC05SU3A 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:Fully static chip design featuring the industry standard 8-bit M68HC05 core
MC68HC05T16 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:High-density complementary metal oxide semiconductor (HCMOS) microcontroller unit
MC68HC05V12 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:HCMOS Microcontreller Unit
MC68HC05V12CFN 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:General Release Specification
MC68HC05X16 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:High-density complementary metal oxide semiconductor HCMOS) microcontroller unit