參數(shù)資料
型號： MC68HC705PD6
廠商： FREESCALE SEMICONDUCTOR INC
元件分類： 微控制器/微處理器
英文描述： 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PQFP80
封裝： QFP-80
文件頁數(shù)： 70/165頁
文件大?。?/td> 841K
代理商： MC68HC705PD6
July 7, 1997
GENERAL RELEASE SPECIFICATION
MC68HC05PD6
MOTOROLA
REV 1.1
A-3
The user code must be a one-to-one correspondence with the internal EPROM
addresses.
A.5
EPROM PROGRAMMING
Programming the on-chip EPROM is achieved by using the Program Control
Register located at address $3D.
Please contact Motorola for programming board availability.
A.5.1 EPROM Program Control Register (PCR)
This register is provided for programming the on-chip EPROM in the
MC68HC705PD6.
ELAT – EPROM LATch control
0 =
EPROM address and data bus congured for normal reads
1 =
EPROM address and data bus congured for programming (writes
to EPROM cause address and data to be latched). EPROM is in
programming mode and cannot be read if ELAT is 1. This bit should
not be set when no programming voltage is applied to the Vpp pin.
PGM – EPROM ProGraM command
0 =
Programming power is switched OFF from EPROM array.
1 =
Programming power is switched ON to EPROM array. If ELAT
≠ 1,
then PGM = 0.
Table A-1. Operating Mode Initialization
MODE
RESET
PC7/IRQ1
PC6/IRQ2
VPP
Single-Chip (Normal)
VSS to VDD
Bootstrap
VSS
VDD
VTST
VTST=2 x VDD
PCR
$003D
bit-7
bit-6
bit-5
bit4
bit-3
bit-2
bit1
bit-0
Read
RESERVED
ELAT
PGM
Write
Reset
0000
0
000
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