參數(shù)資料
型號: MC68HC11F1CFN2
廠商: Freescale Semiconductor
文件頁數(shù): 112/158頁
文件大?。?/td> 0K
描述: IC MCU 512 EEPROM 2MHZ 68-PLCC
標準包裝: 18
系列: HC11
核心處理器: HC11
芯體尺寸: 8-位
速度: 2MHz
連通性: SCI,SPI
外圍設(shè)備: POR,WDT
輸入/輸出數(shù): 30
程序存儲器類型: ROMless
EEPROM 大?。?/td> 512 x 8
RAM 容量: 1K x 8
電壓 - 電源 (Vcc/Vdd): 4.75 V ~ 5.25 V
數(shù)據(jù)轉(zhuǎn)換器: A/D 8x8b
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 85°C
封裝/外殼: 68-LCC(J 形引線)
包裝: 管件
OPERATING MODES AND ON-CHIP MEMORY
TECHNICAL DATA
4-19
Figure 4-3 Address Map for I/O and Program Chip Selects
4.5.3 General-Purpose Chip Select
The general-purpose chip select (CSGEN) is the most flexible and has the most con-
trol bits. Polarity of the active state, E-valid or address-valid timing, size, starting ad-
dress, and clock delay are all programmable.
A single bit in CSCTL selects a priority between CSGEN and CSPROG. Bits in CSG-
SIZ select between address valid or E-clock valid timing, determine the polarity of the
active state and the address range of CSGEN. The value contained in the CSGADR
register determines the starting address for CSGEN. Depending on the size selected
for CSGEN, some bits in CSGADR will be invalid (don’t cares). Note that CSGEN is
disabled when a size of zero is selected. Refer to Figure 4-4.
$0000
$1000
$FFFF
EXPANDED
MODE
$FE00
FFC0
FFFF
VECTORS
0000
FFFF
E000
C000
8000
x000
x05F
96-BYTE REGISTER
BLOCK
x060
x7FF
I/O CHIP SELECT 1
(CSIO1)
x800
xFFF
I/O CHIP SELECT 2
(CSIO2)
REMAPPABLE TO
4-KBYTE BOUNDARY
$E000
$C000
$8000
PSIZ[A:B] = 0:0
64K
PSIZ[A:B] = 0:1
32K
PSIZ[A:B] = 1:0
16K
PSIZ[A:B] = 1:1
8K
PROGRAM CHIP SELECT
(CSPROG)
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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