参数资料
型号: MC68HC05SB7
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDSO28
封装: MO-150, SSOP-28
文件页数: 39/170页
文件大小: 2161K
代理商: MC68HC05SB7
August 27, 1998
GENERAL RELEASE SPECIFICATION
MC68HC05SB7
PERSONALITY EPROM
MOTOROLA
REV 2.1
16-3
PEPGM — PEPROM Program Control
This read/write bit controls the switches that apply the programming voltage on
the IRQ/VPP pin to the selected PEPROM cell. Reset clears the PEPGM bit.
1 = Programming voltage applied to array bit.
0 = Programming voltage not applied to array bit.
PEPRZF — PEPROM Row Zero Flag
This read-only bit is set when the PEPROM bit select register selects the rst
row (row zero) of the PEPROM array. Selecting any other row clears PEPRZF.
Monitoring PEPRZF can reduce the code needed to access one byte of eight
PEPROM locations. Reset clears the PEPROM bit select register thereby set-
ting the PEPRZF bit by default.
1 = Row zero selected.
0 = Row zero not selected.
16.2
PEPROM PROGRAMMING
The PEPROM can be programmed by user software with the VPP voltage level
applied to the IRQ/VPP pin. The following sequence shows how to program each
PEPROM bit:
1.
Select a PEPROM bit by writing to the PEBSR.
2.
Set the PEPGM bit in the PESCR.
3.
Wait 3 milliseconds.
4.
Clear the PEPGM bit.
5.
Move to next PEPROM bit to be programmed in step 1.
Table 16-1. PEPROM Bit Selection
PEBSR
PEPROM Bit Selected
$00 - $07
Row 0 - Row 7
Column 0
$08 - $0F
Row 0 - Row 7
Column 1
$10 - $17
Row 0 - Row 7
Column 2
$18 - $1F
Row 0 - Row 7
Column 3
$20 - $27
Row 0 - Row 7
Column 4
$28 - $2F
Row 0 - Row 7
Column 5
$30 - $37
Row 0 - Row 7
Column 6
$38 - $3F
Row 0 - Row 7
Column 7
相关PDF资料
PDF描述
MC68HC705SB7 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PDSO28
MC68HC05SU3AB 8-BIT, MROM, 2 MHz, MICROCONTROLLER, PDIP42
MC68HC05T2P 8-BIT, MROM, MICROCONTROLLER, PDIP40
MC68HC08AS32CFN 8-BIT, EEPROM, 8.4 MHz, MICROCONTROLLER, PQCC52
MC68HC08AS32VFN 8-BIT, EEPROM, 8.4 MHz, MICROCONTROLLER, PQCC52
相关代理商/技术参数
参数描述
MC68HC05SC24 制造商:MOTOROLA 制造商全称:Motorola, Inc 功能描述:Secure 8-bit microcomputer with EEPROM
MC68HC05SR3 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:High-density Complementary Metal Oxide Semiconductor (HCMOS) Microcontroller Units
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