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P912XDP512F0MPVR 数据表(PDF) 790 Page - Freescale Semiconductor, Inc

部件名 P912XDP512F0MPVR
功能描述  HCS12X Microcontrollers
PDF  1348 Pages
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制造商  FREESCALE [Freescale Semiconductor, Inc]
网页  http://www.freescale.com
标志 FREESCALE - Freescale Semiconductor, Inc

P912XDP512F0MPVR 数据表(HTML) 790 Page - Freescale Semiconductor, Inc

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Chapter 21 External Bus Interface (S12XEBIV2)
MC9S12XDP512 Data Sheet, Rev. 2.21
792
Freescale Semiconductor
Table 21-3. Input Threshold Levels on External Signals
ITHRS
External Signal
NS
SS
NX
ES
EX
ST
0
DATA[15:8]
TAGHI, TAGLO
Standard
Standard
Standard
Reduced
Reduced
Standard
DATA[7:0]
EWAIT
Standard
Standard
1
DATA[15:8]
TAGHI, TAGLO
Standard
Standard
Reduced
if HDBE = 1
Reduced
Reduced
Reduced
DATA[7:0]
Reduced
EWAIT
Reduced
if EWAITE = 1
Standard
Reduced
if EWAITE = 1
Standard
Table 21-4. External Address Bus Size
ASIZ[4:0]
Available External Address Lines
00000
None
00001
UDS
00010
ADDR1, UDS
00011
ADDR[2:1], UDS
::
10110
ADDR[21:1], UDS
10111
:
11111
ADDR[22:1], UDS



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