參數(shù)資料
型號: 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
文件頁數(shù): 5/58頁
文件大?。?/td> 583K
代理商: MC68HC11EA9MFN3
MC68HC11EA9
MOTOROLA
MC68HC11EA9TS/D
13
Figure 6 MC68HC(7)11EA9 Memory Map
RAM[3:0] — RAM Map Position
These four bits, which specify the upper hexadecimal digit of the RAM address, control position of RAM
in the memory map. RAM can be positioned at the beginning of any 4 Kbyte page in the memory map.
It is initialized to address $0000 out of reset.
REG[3:0] — 64-Byte Register Block Position
These four bits specify the upper hexadecimal digit of the address for the 64-byte block of internal reg-
isters. The register block, positioned at the beginning of any 4 Kbyte page in the memory map, is initial-
ized to address $1000 out of reset.
INIT — RAM and I/O Mapping Register
$103D
BIT 7
654321
BIT 0
RAM3
RAM2
RAM1
RAM0
REG3
REG2
REG1
REG0
RESET:
00000001
EA9 MEM MAP
FFC0
FFFF
NORMAL
MODES
INTERRUPT
VECTORS
64-BYTE REGISTER BLOCK
512 BYTES RAM
SINGLE
CHIP
BOOTSTRAP
SPECIAL
TEST
EXT
$0000
$1000
$B600
$D000
$FFFF
0000
1000
103F
BF00
EXPANDED
D000
FFFF
BFFF
BFC0
BFFF
SPECIAL MODES
INTERRUPT
VECTORS
B600
B7FF
512 BYTES EEPROM
12 KBYTES ROM/EPROM
BOOT
ROM
EXT
01FF
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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