參數(shù)資料
型號(hào)： MC68HC11EA9MFN3
廠商： FREESCALE SEMICONDUCTOR INC
元件分類： 微控制器/微處理器
英文描述： 8-BIT, MROM, 3 MHz, MICROCONTROLLER, PQCC52
封裝： PLASTIC, LCC-52
文件頁(yè)數(shù)： 8/58頁(yè)
文件大?。?/td> 583K
代理商： MC68HC11EA9MFN3
MOTOROLA
MC68HC11EA9
16
MC68HC11EA9TS/D
Figure 7 MC68HC711EA9 PROG Mode Connections
4.9.2 Programming an Individual EPROM Address
In the second method, the MCU programs its own EPROM by controlling the PPROG register. Use the
following procedure to program the EPROM through the MCU with the ROMON bit set in the CONFIG
register. The 12 volt nominal programming voltage must be present on the XIRQ/VPPE pin. Any operat-
ing mode can be used.
1.
Write to PPROG to set the ELAT bit.
2.
Write the data to the desired address.
3.
Write to PPROG to set both the ELAT and PGM bits.
4.
Delay for 10 ms or more, as appropriate.
7EA9 PROG CONN
A4
A5
A6
A1
A2
A3
A7
A12
A8
A9
A10
A11
A0
NC
EXTAL
PA4/OC4/OC1
PA5/OC3/OC1
PC4/ADDR4/DATA4
PC5/ADDR5/DATA5
PC6/ADDR6/DATA6
PC1/ADDR1/DATA1
PC2/ADDR2/DATA2
PC3/ADDR3/DATA3
PC7/ADDR7/DATA7
PB4/ADDR12
PB0/ADDR8
PB1/ADDR9
PB2/ADDR10
PB3/ADDR11
PC0/ADDR0/DATA0
STRB/R/W
STRA/AS
PA5/OC3/OC1
PA4/OC4/OC1
PA3/OC5/IC4/OC1
PA2/IC1
PD1/TxD
PD0/RxD
O7
O6
O5
O1
O2
O4
O3
O0
A4
A5
A6
A1
A2
A3
A7
A12
A8
A9
A10
A11
A0
A14
GND
NOTE 1
O7
O6
O5
O1
O2
O4
O3
O0
INTERNAL
12-KBYTE
EPROM
PIN FUNCTIONS
MCU PIN FUNCTIONS
EPROM MODE PIN CONNECTIONS
MC68HC711EA9
NOTES:
1. UNUSED INPUTS — GROUNDING IS RECOMMENDED.
2. UNUSED OUTPUTS — THESE PINS SHOULD BE LEFT UNTERMINATED.
3. THESE PINS MUST BE GROUNDED FOR PROG MODE OPERATION.
VSS
VDD
IRQ
XIRQ
PB7/ADDR15
GND
VCC
CE
VPP
OE
GND
V
CE
V
OE
PP
CC
E
XTAL
PA1/IC2
PA0/IC3
PB6/ADDR14
GND
NOTE 3
PB5/ADDR13
A13
RESET
MODB/VSTBY
MODA/LIR
GND
NC
NOTE 2
A13
NC
GND
PE0/AN0
PE6/AN6
GND
PE1/AN1
GND
PE2/AN2
GND
PE3/AN3
GND
PE4/AN4
GND
PE5/AN5
GND
PE7/AN7
GND
RH
RL
GND
V
GND
VDDSYN
GND
XFC
PA7/PAI/OC1
GND
PA6/OC2/OC1
GND
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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